fix: manual Lightning payment reconciliation with Stripe invoice state

.gitea/workflows/docker-publish.yml

@@ -1,59 +0,0 @@
-name: Docker
-
-on:
-  push:
-    branches: [master]
-
-env:
-  REGISTRY: gitea.coracle.social
-
-jobs:
-  build-and-push-image:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-
-    strategy:
-      matrix:
-        include:
-          - component: frontend
-            image: coracle/caravel-frontend
-            context: frontend
-          - component: backend
-            image: coracle/caravel-backend
-            context: backend
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Log in to the Container registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: hodlbod
-          password: ${{ secrets.PACKAGE_TOKEN }}
-
-      - name: Extract metadata (tags, labels) for Docker
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ env.REGISTRY }}/${{ matrix.image }}
-          tags: |
-            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }}
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          driver: docker-container
-
-      - name: Build and push Docker image
-        id: push
-        uses: docker/build-push-action@v5
-        with:
-          context: ${{ matrix.context }}
-          push: true
-          platforms: linux/amd64,linux/arm64
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}

README.md

@@ -26,7 +26,7 @@ docker run -it \
   -v ./config:/app/config \
   -v ./media:/app/media \
   -v ./data:/app/data \
-  gitea.coracle.social/coracle/zooid
+  ghcr.io/coracle-social/zooid
 ```
 
 ### 2. Configure the backend

backend/.env.template

@@ -26,17 +26,7 @@ LIVEKIT_URL=
 LIVEKIT_API_KEY=
 LIVEKIT_API_SECRET=
 
-# Blossom S3 (optional; when region, bucket, access key, and secret are all set, relays with blossom enabled sync with adapter s3 and key_prefix = relay schema)
-BLOSSOM_S3_ENDPOINT=
-BLOSSOM_S3_REGION=
-BLOSSOM_S3_BUCKET=
-BLOSSOM_S3_ACCESS_KEY=
-BLOSSOM_S3_SECRET_KEY=
-
 # Billing
 NWC_URL=                      # Nostr Wallet Connect URL for generating Lightning invoices
-ENCRYPTION_SECRET=            # Nostr secret key (hex or nsec) used to encrypt tenant NWC URLs at rest
 STRIPE_SECRET_KEY=            # Required Stripe API secret key (sk_...)
 STRIPE_WEBHOOK_SECRET=whsec_test_00000000000000000000000000  # Webhook signing secret (use real value in production)
-STRIPE_PRICE_BASIC=           # Stripe price ID (price_...) for the Basic plan; required for paid plans
-STRIPE_PRICE_GROWTH=          # Stripe price ID (price_...) for the Growth plan; required for paid plans

backend/README.md

@@ -43,17 +43,9 @@ Environment variables:
 | `LIVEKIT_URL`            | LiveKit URL sent to zooid when relay livekit is enabled                 | _optional_                           |
 | `LIVEKIT_API_KEY`        | LiveKit API key sent to zooid                                           | _optional_                           |
 | `LIVEKIT_API_SECRET`     | LiveKit API secret sent to zooid                                        | _optional_                           |
-| `BLOSSOM_S3_ENDPOINT`    | S3-compatible endpoint URL for Blossom; omit for AWS S3                 | _optional_                           |
-| `BLOSSOM_S3_REGION`      | S3 region; with bucket, access key, and secret enables S3 for Blossom   | _optional_                           |
-| `BLOSSOM_S3_BUCKET`      | S3 bucket name                                                          | _optional_                           |
-| `BLOSSOM_S3_ACCESS_KEY`  | S3 access key ID                                                        | _optional_                           |
-| `BLOSSOM_S3_SECRET_KEY`  | S3 secret access key                                                    | _optional_                           |
 | `NWC_URL`                | Platform NWC URL used to generate BOLT11 invoices                       | _required for invoice generation_    |
-| `ENCRYPTION_SECRET`      | Nostr secret key (hex or nsec) used to encrypt tenant NWC URLs at rest  | _required_                           |
 | `STRIPE_SECRET_KEY`      | Stripe API secret key used for billing API operations                   | _required_                           |
 | `STRIPE_WEBHOOK_SECRET`  | Stripe webhook signing secret used to verify `Stripe-Signature` headers | _required_                           |
-| `STRIPE_PRICE_BASIC`     | Stripe price ID (`price_...`) backing the Basic plan                    | _required for paid plans_            |
-| `STRIPE_PRICE_GROWTH`    | Stripe price ID (`price_...`) backing the Growth plan                   | _required for paid plans_            |
 | `ROBOT_SECRET`           | Robot Nostr secret key                                                  | _required_                           |
 | `ROBOT_NAME`             | Robot display name (kind `0`)                                           | _optional_                           |
 | `ROBOT_DESCRIPTION`      | Robot description (kind `0`)                                            | _optional_                           |

backend/spec/api.md

@@ -57,7 +57,7 @@ Notes:
 
 - Serves `GET /tenants`
 - Authorizes admin only
-- Return `data` is a list of `TenantResponse` structs (contains `nwc_is_set: bool` instead of `nwc_url`)
+- Return `data` is a list of tenant structs from `query.list_tenants`
 
 ## `async fn create_tenant(...) -> Response`
 
@@ -69,21 +69,20 @@ Notes:
 - On unique-constraint race (`pubkey-exists`), re-fetch and return the existing tenant
 - If Stripe customer creation fails, return `code=stripe-customer-create-failed`
 - Always returns `200` (create-or-get is uniform)
-- Return `data` is a single `TenantResponse` struct (contains `nwc_is_set: bool` instead of `nwc_url`)
+- Return `data` is a single `Tenant` struct
 
 ## `async fn get_tenant(...) -> Response`
 
 - Serves `GET /tenants/:pubkey`
 - Authorizes admin or matching tenant
-- Return `data` is a single `TenantResponse` struct (contains `nwc_is_set: bool` instead of `nwc_url`)
+- Return `data` is a single tenant struct from `query.get_tenant`
 
 ## `async fn update_tenant(...) -> Response`
 
 - Serves `PUT /tenants/:pubkey`
 - Authorizes admin or matching tenant
-- Accepts `nwc_url` in the request body; encrypts it before storage using `cipher::encrypt`
 - Updates tenant using `command.update_tenant`
-- Return `data` is the updated `TenantResponse` struct (contains `nwc_is_set: bool` instead of `nwc_url`)
+- Return `data` is the updated tenant struct
 
 ## `async fn list_tenant_relays(...) -> Response`
 

backend/spec/billing.md

@@ -2,47 +2,45 @@
 
 Billing encapsulates logic related to synchronizing state with Stripe, processing payments via NWC, and managing subscription lifecycle.
 
-It owns the domain logic only: every raw Stripe REST call goes through the `Stripe` wrapper (see `spec/stripe.md`), and every Lightning (NWC) wallet operation and the fiat-minor-units → millisatoshi conversion go through the helpers in `spec/bitcoin.md`.
-
 Members:
 
-- `stripe: Stripe` - thin wrapper around the Stripe REST API (see `spec/stripe.md`), built from `STRIPE_SECRET_KEY` / `STRIPE_WEBHOOK_SECRET`
-- `bitcoin: Bitcoin` - the Bitcoin-facing config: system NWC wallet (`NWC_URL`) plus the BTC price-feed HTTP client (see `spec/bitcoin.md`)
+- `nwc_url: String` - a nostr wallet connect URL used to **create** bolt11 invoices (i.e. receive payments), from `NWC_URL`
+- `stripe_secret_key: String` - Stripe API key used for billing API operations, from `STRIPE_SECRET_KEY`
+- `stripe_webhook_secret: String` - secret for verifying Stripe webhook signatures, from `STRIPE_WEBHOOK_SECRET`
 - `query: Query`
 - `command: Command`
 - `robot: Robot`
 
 ## `pub fn new(query: Query, command: Command, robot: Robot) -> Self`
 
-- Builds `stripe` via `Stripe::from_env()` and `bitcoin` via `Bitcoin::from_env()`
-- Panics if `STRIPE_SECRET_KEY` or `STRIPE_WEBHOOK_SECRET` is missing/empty (`NWC_URL` is optional)
+- Reads environment and populates members
+- Panics if `STRIPE_SECRET_KEY` is missing/empty
+- Panics if `STRIPE_WEBHOOK_SECRET` is missing/empty
 
 ## `pub fn start(&self)`
 
 - Subscribes to `command.notify.subscribe()`
-- On `create_relay`, `update_relay`, `activate_relay`, `deactivate_relay`, `fail_relay_sync`, and `complete_relay_sync`: resolve the relay named by the activity (skip if it no longer exists) and reconcile its tenant via `sync_tenant_subscription`.
-- The startup/lagged reconcile loop calls `sync_tenant_subscription` for every tenant.
+- On `create_relay`, `update_relay`, `activate_relay`, `deactivate_relay`, `fail_relay_sync`, and `complete_relay_sync`, call `self.sync_relay_subscription`.
 
-## `fn sync_tenant_subscription(&self, tenant_pubkey: &str)`
+## `pub fn sync_relay_subscription(&self, activity: &Activity)`
 
-Reconciles a tenant's single Stripe subscription with the set of relays that should be billed. Only paid (non-free) relays interact with Stripe. Free-only tenants have no subscription. Must be idempotent.
-
-Stripe forbids two subscription items on the same subscription from sharing a price, so billing is modeled as **one subscription item per plan (price), with `quantity` equal to the number of the tenant's `active` relays on that plan**. Every such relay's `stripe_subscription_item_id` points at the shared item for its plan; relays that aren't billed (free, inactive, delinquent) have it cleared.
+Manages the Stripe subscription and subscription items for a relay's tenant. Only paid (non-free) relays interact with Stripe. Free-only tenants have no subscription. Must be idempotent.
 
 Stripe uses **pay-in-advance** by default: when a subscription is first created, Stripe immediately generates an open invoice for the current period. The `invoice.created` webhook fires shortly after and `handle_invoice_created` attempts payment.
 
-- Fetch the tenant and its relays. Build the desired state: for each `active` relay on a paid plan with a non-empty `stripe_price_id`, count relays per price.
-- **Resolve the live subscription**: if the tenant has a `stripe_subscription_id`, fetch it. If Stripe no longer knows about it, or its status is `canceled`/`incomplete_expired`, call `command.clear_tenant_subscription` and treat the tenant as having no subscription.
-- **No relays to bill** (desired state empty): if the tenant still has a `stripe_subscription_id`, cancel the Stripe subscription and call `command.clear_tenant_subscription`. Clear `stripe_subscription_item_id` on every relay that has one. Return.
-- **No subscription yet**: create a Stripe subscription for the customer with `collection_method: "charge_automatically"` and one item per `(price, quantity)`. Save the subscription ID via `command.set_tenant_subscription`.
-- **Existing subscription**: fetch its current items. For each desired `(price, quantity)`: update the matching item's quantity if it differs, otherwise create the item. Delete any item whose price no longer appears in the desired state.
-- **Point relays at items**: for each relay, set `stripe_subscription_item_id` (via `command.set_relay_subscription_item`) to the shared item for its plan, or clear it (via `command.delete_relay_subscription_item`) if the relay is not billed.
-- **Downgrade validation**: if any quantity decreased or any item was removed, preview the upcoming Stripe invoice and log proration line/amount details to validate expected credit/proration behavior.
+- Fetch the relay and tenant associated with the `activity`
+- **If relay plan is `free`**: if the relay has a `stripe_subscription_item_id`, delete it via the Stripe API and call `command.delete_relay_subscription_item`. Then run downgrade proration validation by previewing the upcoming invoice and logging proration lines/amounts. Then check cleanup (below). Return early.
+- **If relay is `inactive` or `delinquent`**: if the relay has a `stripe_subscription_item_id`, delete it via the Stripe API and call `command.delete_relay_subscription_item`. Then check cleanup (below). Return early.
+- **If relay is `active` and on a paid plan**:
+  - **Ensure subscription exists**: If the tenant has no `stripe_subscription_id`, create a Stripe subscription for the customer with `collection_method: "charge_automatically"` and the relay's price as the first item. Save the subscription ID via `command.set_tenant_subscription` and the item ID via `command.set_relay_subscription_item`. Return early.
+  - **Sync the subscription item**: If the tenant already has a subscription, create or update the relay's Stripe subscription item to the plan's `stripe_price_id` via the Stripe API, then call `command.set_relay_subscription_item`.
+  - **Downgrade validation**: when changing an existing subscription item, detect if the new plan amount is lower than the current one. If yes, preview the upcoming Stripe invoice and log proration line/amount details to validate expected credit/proration behavior.
+- **Clean up empty subscription**: After any item deletion, check if the tenant has any remaining active paid relays. If none and the tenant has a `stripe_subscription_id`, cancel the Stripe subscription immediately and call `command.clear_tenant_subscription`.
 
 ## `pub fn handle_webhook(&self, payload: &str, signature: &str) -> Result<()>`
 
-- Verify and parse the event via `self.stripe.construct_event(payload, signature)` (checks the `Stripe-Signature` HMAC and timestamp tolerance — see `spec/stripe.md`)
-- Dispatch by type:
+- Verify the webhook signature using `self.stripe_webhook_secret`
+- Parse the event and dispatch by type:
   - `invoice.created` -> `self.handle_invoice_created`
   - `invoice.paid` -> `self.handle_invoice_paid`
   - `invoice.payment_failed` -> `self.handle_invoice_payment_failed`
@@ -52,69 +50,56 @@ Stripe uses **pay-in-advance** by default: when a subscription is first created,
   - `payment_method.attached` -> `self.handle_payment_method_attached`
 - Unknown event types are ignored (return Ok)
 
-## `pub async fn stripe_create_customer(&self, tenant_pubkey: &str) -> Result<String>`
-
-- Resolves a display name via `robot.fetch_nostr_name(tenant_pubkey)`, falling back to the first 8 chars of the pubkey
-- Creates the Stripe customer via `stripe.create_customer(display_name, tenant_pubkey)` and returns its id
-
 ## `pub async fn stripe_list_invoices(&self, customer_id: &str) -> Result<Value>`
 
-- Delegates to `stripe.list_invoices` — returns the `data` array of the customer's invoices
+- Fetches invoices from Stripe API for the given customer
+- Returns the `data` array from the Stripe response
 
-## `pub async fn stripe_create_portal_session(&self, customer_id: &str, return_url: Option<&str>) -> Result<String>`
+## `pub async fn stripe_get_invoice(&self, invoice_id: &str) -> Result<Value>`
 
-- Delegates to `stripe.create_portal_session` — returns the Customer Portal session URL
+- Fetches a single invoice from Stripe API by ID
+- Returns the full Stripe invoice object
 
-## `pub async fn get_invoice_with_tenant(&self, invoice_id: &str) -> Result<(Value, Tenant), InvoiceLookupError>`
+## `pub async fn create_bolt11(&self, amount_due_cents: i64) -> Result<String>`
 
-- Fetches the invoice via `stripe.get_invoice` (a Stripe 4xx surfaces as `InvoiceLookupError::StripeClient`)
-- Looks up the tenant by the invoice's `customer` field; errors if the invoice has no customer or no tenant matches
-
-## `pub async fn reconcile_manual_lightning_invoice(&self, invoice_id: &str, invoice: &Value) -> Result<Value, InvoiceLookupError>`
-
-If `invoice.status == "open"` and a manual-Lightning bolt11 was previously issued for it (`query.get_invoice_manual_lightning_bolt11`), check whether that bolt11 has settled (`bitcoin.system_wallet().invoice_settled(...)`). If it has, mark the Stripe invoice paid out of band (`stripe.pay_invoice_out_of_band`) and return the refreshed invoice. On any lookup/settlement failure, log and return the invoice unchanged.
-
-## `pub async fn get_or_create_manual_lightning_bolt11(&self, invoice_id: &str, tenant_pubkey: &str, amount_due_minor: i64, currency: &str) -> Result<String>`
-
-- Returns the existing bolt11 if one is already recorded for the invoice
-- Otherwise creates one via `create_bolt11`, records it with `command.insert_manual_lightning_invoice_payment`, and returns it (re-reading the stored row if the insert lost a race)
-
-## `pub async fn create_bolt11(&self, amount_due_minor: i64, currency: &str) -> Result<String>`
-
-- Converts the fiat amount to msats via `bitcoin.fiat_minor_to_msats` (fetches the live BTC spot price — see `spec/bitcoin.md`)
-- Issues a bolt11 invoice for that amount on the system NWC wallet (`bitcoin.system_wallet().make_invoice(...)`)
+- Creates a bolt11 Lightning invoice for the given amount using the system NWC wallet (`self.nwc_url`)
 - Returns the bolt11 invoice string
 
+## `pub async fn stripe_create_portal_session(&self, customer_id: &str) -> Result<String>`
+
+- Creates a Stripe Customer Portal session for the given customer
+- Returns the portal session URL
+
 ## `pub async fn pay_outstanding_nwc_invoices(&self, tenant: &Tenant) -> Result<()>`
 
 Called when a tenant first sets their NWC URL (via `PUT /tenants/:pubkey`). Attempts to pay any currently open invoices for the tenant using their NWC wallet, so that invoices created before NWC was configured are not left unpaid.
 
 - If `tenant.nwc_url` is empty, return early.
-- List all Stripe invoices for `tenant.stripe_customer_id` via `stripe.list_invoices`.
+- List all Stripe invoices for `tenant.stripe_customer_id` via `stripe_list_invoices`.
 - For each invoice with `status == "open"` and `amount_due > 0`:
   - Attempt NWC payment via `nwc_pay_invoice`.
-  - On success: mark the Stripe invoice paid out of band (`stripe.pay_invoice_out_of_band`) and call `command.clear_tenant_nwc_error`.
+  - On success: call `stripe_pay_invoice_out_of_band` and `command.clear_tenant_nwc_error`.
   - On failure: call `command.set_tenant_nwc_error` and log the error; continue to the next invoice.
 
 ## `pub async fn pay_outstanding_card_invoices(&self, tenant: &Tenant) -> Result<()>`
 
 Attempts Stripe-side collection for open invoices when the tenant has a card on file.
 
-- If tenant has no card payment method (`stripe.has_payment_method`), return early.
-- List all Stripe invoices for `tenant.stripe_customer_id` via `stripe.list_invoices`.
+- If tenant has no card payment method, return early.
+- List all Stripe invoices for `tenant.stripe_customer_id`.
 - For each invoice with `status == "open"` and `amount_due > 0`:
-  - Call `stripe.pay_invoice` to retry collection using the card on file.
+  - Call Stripe `POST /v1/invoices/:id/pay` to retry collection using the card on file.
   - Log and continue on failures.
 
 ## `fn handle_invoice_created(&self, invoice: &Invoice)`
 
 Attempts to pay a new subscription invoice. Because Stripe defaults to pay-in-advance, this webhook fires immediately when a subscription is created (i.e. when a paid relay is added or a plan is upgraded). Payment priority:
 
-1. **NWC auto-pay**: If the tenant has a `nwc_url`, run `nwc_pay_invoice` (decrypting the tenant's stored `nwc_url` first):
-   - The system wallet (`bitcoin.system_wallet()`) issues a bolt11 invoice for the fiat amount; the tenant's wallet (`Wallet::parse` of the decrypted URL) pays it. A `pending` row in `invoice_nwc_payment` guards against double-charging across retries.
-   - If payment succeeds: mark the Stripe invoice paid out of band (`stripe.pay_invoice_out_of_band`) and clear `nwc_error` via `command.clear_tenant_nwc_error`. Done.
-   - If it fails before any charge could have gone out: set `nwc_error` on the tenant via `command.set_tenant_nwc_error`, and fall through to the next option (carrying a short summary of the error into the eventual DM).
-   - If it fails after a charge may have gone out (needs reconciliation): set `nwc_error` and return the error without falling through — a human must reconcile before any retry.
+1. **NWC auto-pay**: If the tenant has a `nwc_url`:
+   - Create a bolt11 Lightning invoice for the invoice amount using `self.nwc_url` (the receiving/system wallet)
+   - Pay the bolt11 invoice using the tenant's `nwc_url` (the spending/tenant wallet)
+   - If payment succeeds: call Stripe `POST /v1/invoices/:id/pay` with `paid_out_of_band: true`. Clear `nwc_error` via `command.clear_tenant_nwc_error`.
+   - If payment fails: set `nwc_error` on tenant via `command.set_tenant_nwc_error`. Fall through to next option.
 2. **Card on file**: If the tenant has a payment method on the Stripe customer, do nothing here — Stripe will charge automatically for this invoice attempt.
 3. **Manual payment**: If neither NWC nor card is available, send a DM via `robot.send_dm` notifying the tenant that payment is due with a link to the application for manual Lightning payment.
 

backend/spec/bitcoin.md

@@ -1,62 +0,0 @@
-# `bitcoin` — Bitcoin / Lightning helpers
-
-Small wrappers around the Bitcoin-facing services the app talks to: Nostr Wallet Connect (NWC) wallets for Lightning invoices/payments, and a fiat↔BTC spot price feed, plus the fiat-minor-units → millisatoshi conversion that ties them together. The billing-specific orchestration (which wallet pays which invoice, double-charge guards, DMs, etc.) lives in `spec/billing.md`.
-
-## `pub struct Bitcoin`
-
-Owns the app's Bitcoin-facing configuration: the system NWC wallet URL (the wallet used to *receive* payments — issue and look up bolt11 invoices) and the HTTP client used for the fiat↔BTC spot price feed.
-
-Members:
-
-- `system_nwc_url: String` - from `NWC_URL`
-- `http: reqwest::Client`
-
-### `pub fn from_env() -> Self`
-
-Reads `NWC_URL` (the system / receiving wallet) and constructs a fresh `reqwest::Client`. Unlike the Stripe keys, `NWC_URL` is **optional**: if it's unset, Lightning operations fail at use time with a clear error rather than panicking at startup. This is what `Billing::new` calls.
-
-### `pub fn system_wallet(&self) -> Result<Wallet>`
-
-Returns the system `Wallet` (parsed from `system_nwc_url` with label `"system"`). Errors if `NWC_URL` is unset or malformed.
-
-### `pub async fn fiat_minor_to_msats(&self, amount_due_minor: i64, currency: &str) -> Result<u64>`
-
-Fetches the live BTC spot price (via `btc_spot_price_from_base` against Coinbase) for `currency` and converts `amount_due_minor` to millisatoshis via `fiat_minor_to_msats_from_quote`. `currency` is upper-cased before use.
-
-## `pub struct Wallet`
-
-A handle to a single NWC wallet. Each operation opens a fresh NWC connection and tears it down (`shutdown`) afterwards.
-
-Member:
-
-- `uri: NostrWalletConnectURI` - the parsed `nostr+walletconnect://…` URI
-
-### `pub fn parse(uri: &str, label: &str) -> Result<Self>`
-
-Parses an `nostr+walletconnect://` URI. `label` (e.g. `"system"` / `"tenant"`) only flavours the error message — `invalid {label} NWC URL` — so callers can tell which wallet was misconfigured.
-
-### `pub async fn make_invoice(&self, amount_msats: u64, description: &str) -> Result<String>`
-
-Issues a bolt11 invoice for `amount_msats` with the given description. Returns the bolt11 string.
-
-### `pub async fn pay_invoice(&self, bolt11: String) -> Result<()>`
-
-Pays a bolt11 invoice.
-
-### `pub async fn invoice_settled(&self, bolt11: &str) -> Result<bool>`
-
-Looks up a bolt11 invoice (previously issued by this wallet) and returns whether it has settled — true if the transaction state is `Settled` or `settled_at` is present.
-
-## `pub async fn btc_spot_price_from_base(http: &reqwest::Client, api_base: &str, currency: &str) -> Result<f64>`
-
-Fetches the BTC spot price denominated in `currency` (an ISO-4217 code) from a Coinbase-shaped API at `api_base` (`{api_base}/BTC-{currency}/spot`); production callers reach it via `Bitcoin::fiat_minor_to_msats` with the real Coinbase base, while tests can point it at a stub. Errors if the quote is missing, unparseable, or non-positive.
-
-## `pub fn fiat_minor_to_msats_from_quote(amount_due_minor: i64, currency: &str, btc_price_in_fiat: f64) -> Result<u64>`
-
-Converts a fiat amount expressed in minor units (cents, etc.) to millisatoshis, given a BTC price quote in that currency.
-
-- Errors if `amount_due_minor <= 0` or `btc_price_in_fiat <= 0`
-- Converts minor units to a major-unit amount using the currency's decimal exponent (most currencies 2; `JPY`/`KRW`/… 0; `BHD`/`KWD`/… 3 — following Stripe's currency conventions; an unrecognized or malformed code is an error)
-- `msats = (amount_fiat / btc_price_in_fiat) * 100_000_000_000`
-- Rounds **up** so we never under-charge, but snaps to the nearest integer when within `1e-6` of one to avoid floating-point artifacts at integer boundaries
-- Errors if the result is non-finite, non-positive, or exceeds `u64::MAX`

backend/spec/infra.md

@@ -5,7 +5,6 @@ Infra is a service which listens for activity and synchronizes relay updates to
 Members:
 
 - `api_url: String` - the URL of the zooid instance to be managed, from `ZOOID_API_URL`
-- `blossom_s3: Option<BlossomS3Sync>` - shared Blossom S3 settings from `BLOSSOM_S3_*` when region, bucket, access key, and secret are all non-empty after trim
 - `query: Query`
 - `command: Command`
 
@@ -37,4 +36,3 @@ Members:
 - Otherwise, sends `PATCH /relay/:id` to update it.
 - Includes `secret` only for relay creation (`POST`) so updates do not rotate relay identity.
 - Passes relay configuration in the body including host, schema, inactive flag, info, policy, groups, management, blossom, livekit, push, and roles.
-- When `blossom_s3` is configured and the relay has blossom enabled, the blossom section includes `adapter: "s3"`, S3 fields from the environment, and `s3.key_prefix` set to the relay's `schema`. Otherwise blossom omits S3 (zooid defaults to local storage) or sends `{ "enabled": false }` when blossom is disabled.

backend/spec/models.md

@@ -52,7 +52,7 @@ There are three plans available:
 Tenants are customers of the service, identified by a nostr `pubkey`. Public metadata like name etc are pulled from the nostr network. They also have associated billing information.
 
 - `pubkey` is the nostr public key identifying the tenant
-- `nwc_url` (private) a nostr wallet connect URL used for **paying** invoices generated by the system on the tenant's behalf; stored encrypted at rest using NIP-44 via `ENCRYPTION_SECRET`; never serialized to API responses — tenant API endpoints expose `nwc_is_set: bool` instead
+- `nwc_url` (private) a nostr wallet connect URL used for **paying** invoices generated by the system on the tenant's behalf
 - `nwc_error` (private) a string indicating the most recent NWC payment error, if any. Cleared on successful NWC payment.
 - `created_at` unix timestamp identifying tenant creation time
 - `stripe_customer_id` a string identifying the associated stripe customer
@@ -63,9 +63,9 @@ Tenants are customers of the service, identified by a nostr `pubkey`. Public met
 
 A relay is a nostr relay owned by a `tenant` and hosted by the attached zooid instance. Relay subdomains MUST be unique.
 
-- `id` - calculated based on `subdomain` + 8 random hex chars
+- `id` - a random ID identifying the relay
 - `tenant` - the tenant's pubkey
-- `schema` - the relay's db schema (read only, same as `id`)
+- `schema` - the relay's db schema (read_only, calculated based on `subdomain` + `id`)
 - `subdomain` - the relay's subdomain
 - `plan` - the relay's plan
 - `stripe_subscription_item_id` (nullable) - the Stripe subscription item id. Only set for relays on paid plans.

backend/spec/query.md

@@ -39,6 +39,10 @@ Members:
 
 - Returns the tenant matching the given `stripe_customer_id`
 
+## `pub fn has_active_paid_relays(&self, tenant_id: &str) -> Result<bool>`
+
+- Returns true if the tenant has any relays where `status = 'active'` and `plan != 'free'`
+
 ## `pub fn list_activity_for_relay(&self, relay_id: &str) -> Result<Vec<Activity>>`
 
 - Returns all activity where `resource_type = 'relay'` and `resource_id = relay_id`

backend/spec/stripe.md

@@ -1,113 +0,0 @@
-# `pub struct Stripe`
-
-A thin async wrapper around the subset of the Stripe REST API this service uses. It knows nothing about relays, tenants, or the database — it just speaks HTTP to Stripe and returns `serde_json::Value` (or small typed results). The domain logic that drives it lives in `spec/billing.md`.
-
-Members:
-
-- `secret_key: String` - Stripe API key, used as the bearer token and as the HMAC key for idempotency keys
-- `webhook_secret: String` - secret for verifying Stripe webhook signatures
-- `http: reqwest::Client`
-
-All requests authenticate with `secret_key` via `Authorization: Bearer`. Write requests that must not be retried twice (customer/subscription/item creation, invoice payment) send a deterministic `Idempotency-Key` derived by HMAC-ing the operation name and its arguments with `secret_key`. Reconcile-to-desired-state writes (e.g. setting an item quantity) intentionally omit the idempotency key, since re-applying the same target is a no-op.
-
-On any 4xx/5xx response, the wrapper reads the body and folds Stripe's JSON error payload (`error.message` / `error.type` / `error.code` / `error.param`) into the returned error so callers get an actionable message instead of a bare status line.
-
-## `pub fn from_env() -> Self`
-
-Reads `STRIPE_SECRET_KEY` and `STRIPE_WEBHOOK_SECRET` (both required) and constructs the client. Panics if either is missing or blank. This is what `Billing::new` calls.
-
-## `pub fn new(secret_key: String, webhook_secret: String) -> Self`
-
-Constructs the client with a fresh `reqwest::Client` from explicit keys (does not touch the environment).
-
-## `pub async fn create_customer(&self, name: &str, tenant_pubkey: &str) -> Result<String>`
-
-- `POST /v1/customers` with `name` and `metadata[tenant_pubkey]`
-- Idempotent on `tenant_pubkey`
-- Returns the new customer id; errors if it isn't a `cus_…` id
-
-## `pub async fn get_subscription(&self, subscription_id: &str) -> Result<Option<Value>>`
-
-- `GET /v1/subscriptions/:id`
-- Returns `None` if Stripe responds `404` (so callers can recover from a stale subscription id), otherwise the subscription object
-
-## `pub async fn create_subscription(&self, customer_id: &str, items: &BTreeMap<String, i64>) -> Result<(String, BTreeMap<String, String>)>`
-
-- `POST /v1/subscriptions` with `collection_method: charge_automatically` and one `items[n][price]` / `items[n][quantity]` pair per entry
-- Idempotent on the customer and the `(price, quantity)` set
-- Returns the subscription id and a map from price id to the created subscription item id
-
-## `pub async fn create_subscription_item(&self, subscription_id: &str, price_id: &str, quantity: i64) -> Result<String>`
-
-- `POST /v1/subscription_items`
-- Idempotent on `(subscription_id, price_id)`
-- Returns the new subscription item id
-
-## `pub async fn set_subscription_item_quantity(&self, item_id: &str, quantity: i64) -> Result<()>`
-
-- `POST /v1/subscription_items/:id` with `quantity`
-- No idempotency key (reconcile-to-target write)
-
-## `pub async fn delete_subscription_item(&self, item_id: &str) -> Result<()>`
-
-- `DELETE /v1/subscription_items/:id`
-
-## `pub async fn cancel_subscription(&self, subscription_id: &str) -> Result<()>`
-
-- `DELETE /v1/subscriptions/:id`
-
-## `pub async fn list_invoices(&self, customer_id: &str) -> Result<Value>`
-
-- `GET /v1/invoices?customer=…`
-- Returns the `data` array
-
-## `pub async fn get_invoice(&self, invoice_id: &str) -> Result<Value, InvoiceLookupError>`
-
-- `GET /v1/invoices/:id`
-- On a 4xx response, returns `InvoiceLookupError::StripeClient { status }` (callers usually surface this as a client error, e.g. `404` "no such invoice"); other failures are `InvoiceLookupError::Internal`
-- Returns the full invoice object
-
-## `pub async fn pay_invoice(&self, invoice_id: &str) -> Result<()>`
-
-- `POST /v1/invoices/:id/pay` (retries collection using the customer's default payment method)
-- Idempotent on `invoice_id`
-
-## `pub async fn pay_invoice_out_of_band(&self, invoice_id: &str) -> Result<()>`
-
-- `POST /v1/invoices/:id/pay` with `paid_out_of_band: true` — used when payment was collected over Lightning rather than through Stripe
-- Idempotent on `invoice_id`
-
-## `pub async fn preview_upcoming_invoice(&self, customer_id: &str, subscription_id: Option<&str>) -> Result<Value>`
-
-- `GET /v1/invoices/upcoming?customer=…[&subscription=…]`
-- Used to validate proration when a subscription is downgraded
-
-## `pub async fn has_payment_method(&self, customer_id: &str) -> Result<bool>`
-
-- `GET /v1/payment_methods?customer=…&type=card`
-- Returns whether the customer has at least one card on file
-
-## `pub async fn create_portal_session(&self, customer_id: &str, return_url: Option<&str>) -> Result<String>`
-
-- `POST /v1/billing_portal/sessions` with `customer` and optional `return_url`
-- Returns the portal session URL
-
-## `pub fn construct_event(&self, payload: &str, sig_header: &str) -> Result<Event>`
-
-Verifies the `Stripe-Signature` header against `webhook_secret` and parses the body.
-
-- Parse `t=` (timestamp) and `v1=` (signature) from the header
-- Compute `HMAC-SHA256(webhook_secret, "{t}.{payload}")`, hex-encode it, and compare to `v1=`; error on mismatch
-- Error if the timestamp is more than 300 seconds from now
-- Returns the deserialized `Event` (`{ event_type, data: { object } }`)
-
-# `pub enum InvoiceLookupError`
-
-- `StripeClient { status: reqwest::StatusCode }` - Stripe returned a 4xx for an invoice lookup
-- `Internal(anyhow::Error)` - any other failure
-
-Implements `Display`/`Error` and `From<anyhow::Error>` / `From<reqwest::Error>` (both mapping to `Internal`).
-
-# `pub struct Event` / `pub struct EventData`
-
-The verified, parsed webhook event: `Event { event_type: String, data: EventData }`, `EventData { object: serde_json::Value }`.

backend/src/api.rs

@@ -3,7 +3,7 @@ use std::sync::Arc;
 use anyhow::{Result, anyhow};
 use axum::{
     Json, Router,
-    extract::{Path, Query as QueryParams, State},
+    extract::{Path, State},
     http::{HeaderMap, StatusCode},
     response::{IntoResponse, Response},
     routing::{get, post},
@@ -12,14 +12,13 @@ use base64::Engine;
 use nostr_sdk::{Event, JsonUtil, Kind};
 use serde::{Deserialize, Serialize};
 
-use crate::billing::Billing;
+use crate::billing::{Billing, InvoiceLookupError};
 use crate::command::Command;
 use crate::infra::Infra;
 use crate::models::{
     RELAY_STATUS_ACTIVE, RELAY_STATUS_DELINQUENT, RELAY_STATUS_INACTIVE, Relay, Tenant,
 };
 use crate::query::Query;
-use crate::stripe::InvoiceLookupError;
 use axum::body::Bytes;
 
 #[derive(Clone)]
@@ -276,6 +275,9 @@ impl Api {
             return Err(RelayValidationError::PremiumFeature);
         }
 
+        if relay.schema.is_empty() {
+            relay.schema = format!("{}_{}", relay.subdomain.replace('-', "_"), relay.id);
+        }
         if relay.status.is_empty() {
             relay.status = RELAY_STATUS_ACTIVE.to_string();
         }
@@ -443,31 +445,6 @@ struct IdentityResponse {
     is_admin: bool,
 }
 
-#[derive(Serialize)]
-struct TenantResponse {
-    pubkey: String,
-    nwc_is_set: bool,
-    nwc_error: Option<String>,
-    created_at: i64,
-    stripe_customer_id: String,
-    stripe_subscription_id: Option<String>,
-    past_due_at: Option<i64>,
-}
-
-impl From<Tenant> for TenantResponse {
-    fn from(t: Tenant) -> Self {
-        TenantResponse {
-            nwc_is_set: !t.nwc_url.is_empty(),
-            pubkey: t.pubkey,
-            nwc_error: t.nwc_error,
-            created_at: t.created_at,
-            stripe_customer_id: t.stripe_customer_id,
-            stripe_subscription_id: t.stripe_subscription_id,
-            past_due_at: t.past_due_at,
-        }
-    }
-}
-
 #[derive(Deserialize)]
 struct CreateRelayRequest {
     tenant: String,
@@ -509,13 +486,7 @@ async fn list_tenants(
     state.api.require_admin(&pubkey)?;
 
     match state.api.query.list_tenants().await {
-        Ok(tenants) => Ok(ok(
-            StatusCode::OK,
-            tenants
-                .into_iter()
-                .map(TenantResponse::from)
-                .collect::<Vec<_>>(),
-        )),
+        Ok(tenants) => Ok(ok(StatusCode::OK, tenants)),
         Err(e) => Ok(err(
             StatusCode::INTERNAL_SERVER_ERROR,
             "internal",
@@ -544,7 +515,7 @@ async fn create_tenant(
     let pubkey = state.api.extract_auth_pubkey(&headers)?;
 
     match state.api.query.get_tenant(&pubkey).await {
-        Ok(Some(t)) => Ok(ok(StatusCode::OK, TenantResponse::from(t))),
+        Ok(Some(t)) => Ok(ok(StatusCode::OK, t)),
         Ok(None) => {
             let stripe_customer_id = match state.api.billing.stripe_create_customer(&pubkey).await {
                 Ok(id) => id,
@@ -568,10 +539,10 @@ async fn create_tenant(
             };
 
             match state.api.command.create_tenant(&tenant).await {
-                Ok(()) => Ok(ok(StatusCode::OK, TenantResponse::from(tenant))),
+                Ok(()) => Ok(ok(StatusCode::OK, tenant)),
                 Err(e) if matches!(map_unique_error(&e), Some("pubkey-exists")) => {
                     match state.api.query.get_tenant(&pubkey).await {
-                        Ok(Some(t)) => Ok(ok(StatusCode::OK, TenantResponse::from(t))),
+                        Ok(Some(t)) => Ok(ok(StatusCode::OK, t)),
                         Ok(None) => Ok(err(
                             StatusCode::INTERNAL_SERVER_ERROR,
                             "internal",
@@ -614,7 +585,7 @@ async fn get_tenant(
     let auth = state.api.extract_auth_pubkey(&headers)?;
     state.api.require_admin_or_tenant(&auth, &pubkey)?;
     let tenant = state.api.get_tenant_or_404(&pubkey).await?;
-    Ok(ok(StatusCode::OK, TenantResponse::from(tenant)))
+    Ok(ok(StatusCode::OK, tenant))
 }
 
 async fn list_relays(
@@ -752,16 +723,10 @@ async fn create_relay(
     let auth = state.api.extract_auth_pubkey(&headers)?;
     state.api.require_admin_or_tenant(&auth, &payload.tenant)?;
 
-    let relay_id = format!(
-        "{}_{}",
-        payload.subdomain.replace('-', "_"),
-        &uuid::Uuid::new_v4().simple().to_string()[..8]
-    );
-
     let mut relay = Relay {
-        id: relay_id.clone(),
+        id: uuid::Uuid::new_v4().to_string(),
         tenant: payload.tenant,
-        schema: relay_id.clone(),
+        schema: String::new(),
         subdomain: payload.subdomain,
         plan: payload.plan,
         stripe_subscription_item_id: None,
@@ -1102,16 +1067,10 @@ async fn get_invoice_bolt11(
     }
 }
 
-#[derive(serde::Deserialize)]
-struct StripeSessionParams {
-    return_url: Option<String>,
-}
-
 async fn create_stripe_session(
     State(state): State<AppState>,
     headers: HeaderMap,
     Path(pubkey): Path<String>,
-    QueryParams(params): QueryParams<StripeSessionParams>,
 ) -> std::result::Result<Response, ApiError> {
     let auth = state.api.extract_auth_pubkey(&headers)?;
     state.api.require_admin_or_tenant(&auth, &pubkey)?;
@@ -1120,7 +1079,7 @@ async fn create_stripe_session(
     match state
         .api
         .billing
-        .stripe_create_portal_session(&tenant.stripe_customer_id, params.return_url.as_deref())
+        .stripe_create_portal_session(&tenant.stripe_customer_id)
         .await
     {
         Ok(url) => Ok(ok(StatusCode::OK, serde_json::json!({ "url": url }))),
@@ -1144,12 +1103,7 @@ async fn update_tenant(
 
     let nwc_previously_empty = tenant.nwc_url.is_empty();
     if let Some(nwc_url) = payload.nwc_url {
-        if nwc_url.is_empty() {
-            tenant.nwc_url = String::new();
-        } else {
-            tenant.nwc_url =
-                crate::cipher::encrypt(&nwc_url).map_err(|e| ApiError::Internal(e.to_string()))?;
-        }
+        tenant.nwc_url = nwc_url;
     }
 
     match state.api.command.update_tenant(&tenant).await {
@@ -1168,7 +1122,7 @@ async fn update_tenant(
                     }
                 });
             }
-            Ok(ok(StatusCode::OK, TenantResponse::from(tenant)))
+            Ok(ok(StatusCode::OK, tenant))
         }
         Err(e) => Ok(err(
             StatusCode::INTERNAL_SERVER_ERROR,

backend/src/bitcoin.rs

@@ -1,220 +0,0 @@
-//! Small wrappers around the Bitcoin-facing services this app talks to: Nostr
-//! Wallet Connect wallets (for Lightning invoices/payments) and a fiat↔BTC spot
-//! price feed, plus the fiat-minor-units → millisatoshi conversion that ties them
-//! together. The billing-specific orchestration lives in [`crate::billing`].
-
-use anyhow::{Result, anyhow};
-use nwc::prelude::{
-    LookupInvoiceRequest, LookupInvoiceResponse, MakeInvoiceRequest, NWC, NostrWalletConnectURI,
-    PayInvoiceRequest, TransactionState,
-};
-
-const COINBASE_SPOT_API: &str = "https://api.coinbase.com/v2/prices";
-/// Millisatoshis per bitcoin.
-const MSATS_PER_BTC: f64 = 100_000_000_000.0;
-
-/// Owns the app's Bitcoin-facing configuration: the system NWC wallet URL (the
-/// wallet used to *receive* payments — issue and look up bolt11 invoices) and the
-/// HTTP client used for the fiat↔BTC spot price feed.
-#[derive(Clone)]
-pub struct Bitcoin {
-    system_nwc_url: String,
-    http: reqwest::Client,
-}
-
-impl Bitcoin {
-    /// Reads `NWC_URL` (the system / receiving wallet). Unlike the Stripe keys this
-    /// is optional: if it's unset, Lightning operations fail at use time with a
-    /// clear error rather than at startup.
-    pub fn from_env() -> Self {
-        Self {
-            system_nwc_url: std::env::var("NWC_URL").unwrap_or_default(),
-            http: reqwest::Client::new(),
-        }
-    }
-
-    /// The system wallet — issues and looks up the bolt11 invoices we want paid to
-    /// us. Errors if `NWC_URL` is unset or malformed.
-    pub fn system_wallet(&self) -> Result<Wallet> {
-        Wallet::parse(&self.system_nwc_url, "system")
-    }
-
-    /// Fetches the live BTC spot price and converts a fiat amount in minor units
-    /// (cents, etc.) to millisatoshis.
-    pub async fn fiat_minor_to_msats(&self, amount_due_minor: i64, currency: &str) -> Result<u64> {
-        let currency = currency.to_uppercase();
-        let btc_price = btc_spot_price_from_base(&self.http, COINBASE_SPOT_API, &currency).await?;
-        fiat_minor_to_msats_from_quote(amount_due_minor, &currency, btc_price)
-    }
-}
-
-#[derive(serde::Deserialize)]
-struct CoinbaseSpotPriceResponse {
-    data: CoinbaseSpotPriceData,
-}
-
-#[derive(serde::Deserialize)]
-struct CoinbaseSpotPriceData {
-    amount: String,
-}
-
-/// A handle to a single Nostr Wallet Connect wallet. Each operation opens a fresh
-/// connection and tears it down afterwards.
-pub struct Wallet {
-    uri: NostrWalletConnectURI,
-}
-
-impl Wallet {
-    /// Parses an `nostr+walletconnect://` URI. `label` only flavours the error
-    /// message so callers can tell which wallet was misconfigured.
-    pub fn parse(uri: &str, label: &str) -> Result<Self> {
-        let uri = uri
-            .parse::<NostrWalletConnectURI>()
-            .map_err(|_| anyhow!("invalid {label} NWC URL"))?;
-        Ok(Self { uri })
-    }
-
-    /// Issues a bolt11 invoice for `amount_msats`.
-    pub async fn make_invoice(&self, amount_msats: u64, description: &str) -> Result<String> {
-        let nwc = NWC::new(self.uri.clone());
-        let result = nwc
-            .make_invoice(MakeInvoiceRequest {
-                amount: amount_msats,
-                description: Some(description.to_string()),
-                description_hash: None,
-                expiry: None,
-            })
-            .await;
-        nwc.shutdown().await;
-        Ok(result
-            .map_err(|e| anyhow!("failed to create invoice: {e}"))?
-            .invoice)
-    }
-
-    /// Pays a bolt11 invoice.
-    pub async fn pay_invoice(&self, bolt11: String) -> Result<()> {
-        let nwc = NWC::new(self.uri.clone());
-        let result = nwc.pay_invoice(PayInvoiceRequest::new(bolt11)).await;
-        nwc.shutdown().await;
-        result.map(|_| ()).map_err(|e| anyhow!("{e}"))
-    }
-
-    /// Returns whether a bolt11 invoice (previously issued by this wallet) has been
-    /// settled.
-    pub async fn invoice_settled(&self, bolt11: &str) -> Result<bool> {
-        let nwc = NWC::new(self.uri.clone());
-        let result = nwc
-            .lookup_invoice(LookupInvoiceRequest {
-                payment_hash: None,
-                invoice: Some(bolt11.to_string()),
-            })
-            .await;
-        nwc.shutdown().await;
-        let response = result.map_err(|e| anyhow!("failed to lookup invoice: {e}"))?;
-        Ok(lookup_invoice_response_is_settled(&response))
-    }
-}
-
-fn lookup_invoice_response_is_settled(response: &LookupInvoiceResponse) -> bool {
-    response.state == Some(TransactionState::Settled) || response.settled_at.is_some()
-}
-
-/// Fetches the BTC spot price denominated in `currency` (an ISO-4217 code) from a
-/// Coinbase-shaped API at `api_base`. Exposed so tests can stub the price feed;
-/// production callers go through [`Bitcoin::fiat_minor_to_msats`].
-pub async fn btc_spot_price_from_base(
-    http: &reqwest::Client,
-    api_base: &str,
-    currency: &str,
-) -> Result<f64> {
-    let pair = format!("BTC-{currency}");
-    let url = format!("{}/{pair}/spot", api_base.trim_end_matches('/'));
-    let resp = http.get(url).send().await?;
-    let body: CoinbaseSpotPriceResponse = resp.error_for_status()?.json().await?;
-
-    let amount = body
-        .data
-        .amount
-        .parse::<f64>()
-        .map_err(|e| anyhow!("invalid BTC spot quote for {currency}: {e}"))?;
-    if amount <= 0.0 {
-        return Err(anyhow!(
-            "invalid non-positive BTC spot quote for {currency}"
-        ));
-    }
-    Ok(amount)
-}
-
-/// Converts a fiat amount expressed in minor units (cents, etc.) to millisatoshis,
-/// given a BTC price quote in that currency. Rounds up so we never under-charge,
-/// but snaps to the nearest integer when within a hair of one to avoid floating
-/// point artifacts at integer boundaries.
-pub fn fiat_minor_to_msats_from_quote(
-    amount_due_minor: i64,
-    currency: &str,
-    btc_price_in_fiat: f64,
-) -> Result<u64> {
-    if amount_due_minor <= 0 {
-        return Err(anyhow!("amount_due must be positive"));
-    }
-    if btc_price_in_fiat <= 0.0 {
-        return Err(anyhow!("btc_price_in_fiat must be positive"));
-    }
-
-    let divisor = 10_f64.powi(currency_minor_exponent(currency)? as i32);
-    let amount_fiat = (amount_due_minor as f64) / divisor;
-    let amount_btc = amount_fiat / btc_price_in_fiat;
-    let raw_msats = amount_btc * MSATS_PER_BTC;
-    let amount_msats = if (raw_msats - raw_msats.round()).abs() < 1e-6 {
-        raw_msats.round()
-    } else {
-        raw_msats.ceil()
-    };
-
-    if !amount_msats.is_finite() || amount_msats <= 0.0 || amount_msats > u64::MAX as f64 {
-        return Err(anyhow!("calculated msat amount is out of bounds"));
-    }
-    Ok(amount_msats as u64)
-}
-
-/// Number of decimal places in `currency`'s minor unit, following Stripe's
-/// currency conventions (most are 2, JPY/KRW/… are 0, BHD/KWD/… are 3).
-fn currency_minor_exponent(currency: &str) -> Result<u8> {
-    let normalized = currency.to_uppercase();
-    let exponent = match normalized.as_str() {
-        // Zero-decimal currencies in Stripe.
-        "BIF" | "CLP" | "DJF" | "GNF" | "JPY" | "KMF" | "KRW" | "MGA" | "PYG" | "RWF" | "UGX"
-        | "VND" | "VUV" | "XAF" | "XOF" | "XPF" => 0,
-        // Three-decimal currencies in Stripe.
-        "BHD" | "JOD" | "KWD" | "OMR" | "TND" => 3,
-        _ if normalized.chars().all(|c| c.is_ascii_alphabetic()) && normalized.len() == 3 => 2,
-        _ => return Err(anyhow!("invalid currency code: {currency}")),
-    };
-    Ok(exponent)
-}
-
-#[cfg(test)]
-mod tests {
-    use super::fiat_minor_to_msats_from_quote;
-
-    #[test]
-    fn converts_usd_minor_units_with_quote() {
-        let msats = fiat_minor_to_msats_from_quote(100, "usd", 100_000.0)
-            .expect("conversion should succeed");
-        assert_eq!(msats, 1_000_000);
-    }
-
-    #[test]
-    fn converts_zero_decimal_currency_with_quote() {
-        let msats = fiat_minor_to_msats_from_quote(100, "jpy", 10_000_000.0)
-            .expect("conversion should succeed");
-        assert_eq!(msats, 1_000_000);
-    }
-
-    #[test]
-    fn rejects_malformed_currency_code() {
-        // Not three ASCII letters: rejected outright.
-        assert!(fiat_minor_to_msats_from_quote(100, "usdd", 100_000.0).is_err());
-        assert!(fiat_minor_to_msats_from_quote(100, "us1", 100_000.0).is_err());
-    }
-}

backend/src/cipher.rs

@@ -1,28 +0,0 @@
-use anyhow::{Result, anyhow};
-use nostr_sdk::prelude::*;
-
-pub fn encrypt(plaintext: &str) -> Result<String> {
-    let keys = load_key()?;
-    nip44::encrypt(
-        keys.secret_key(),
-        &keys.public_key(),
-        plaintext,
-        nip44::Version::V2,
-    )
-    .map_err(|e| anyhow!("encryption failed: {e}"))
-}
-
-pub fn decrypt(ciphertext: &str) -> Result<String> {
-    let keys = load_key()?;
-    nip44::decrypt(keys.secret_key(), &keys.public_key(), ciphertext)
-        .map_err(|e| anyhow!("decryption failed: {e}"))
-}
-
-fn load_key() -> Result<Keys> {
-    let secret = std::env::var("ENCRYPTION_SECRET")
-        .map_err(|_| anyhow!("missing ENCRYPTION_SECRET environment variable"))?;
-    if secret.trim().is_empty() {
-        return Err(anyhow!("ENCRYPTION_SECRET is empty"));
-    }
-    Keys::parse(&secret).map_err(|e| anyhow!("invalid ENCRYPTION_SECRET: {e}"))
-}

backend/src/infra.rs

@@ -10,47 +10,6 @@ const RELAY_SYNC_RETRY_BASE_DELAY_SECS: u64 = 30;
 const RELAY_SYNC_RETRY_MAX_DELAY_SECS: u64 = 15 * 60;
 const RELAY_SYNC_RETRY_MAX_ATTEMPTS: usize = 6;
 
-/// Blossom S3 settings from env; relay sync sets `key_prefix` to the relay schema.
-#[derive(Clone)]
-struct BlossomS3Sync {
-    endpoint: String,
-    region: String,
-    bucket: String,
-    access_key: String,
-    secret_key: String,
-}
-
-impl BlossomS3Sync {
-    fn from_env() -> Option<Self> {
-        let region = std::env::var("BLOSSOM_S3_REGION").unwrap_or_default();
-        let bucket = std::env::var("BLOSSOM_S3_BUCKET").unwrap_or_default();
-        let access_key = std::env::var("BLOSSOM_S3_ACCESS_KEY").unwrap_or_default();
-        let secret_key = std::env::var("BLOSSOM_S3_SECRET_KEY").unwrap_or_default();
-
-        let region = region.trim().to_string();
-        let bucket = bucket.trim().to_string();
-        let access_key = access_key.trim().to_string();
-        let secret_key = secret_key.trim().to_string();
-
-        if region.is_empty() || bucket.is_empty() || access_key.is_empty() || secret_key.is_empty() {
-            return None;
-        }
-
-        let endpoint = std::env::var("BLOSSOM_S3_ENDPOINT")
-            .unwrap_or_default()
-            .trim()
-            .to_string();
-
-        Some(Self {
-            endpoint,
-            region,
-            bucket,
-            access_key,
-            secret_key,
-        })
-    }
-}
-
 #[derive(Clone)]
 pub struct Infra {
     api_url: String,
@@ -59,7 +18,6 @@ pub struct Infra {
     livekit_api_key: String,
     livekit_api_secret: String,
     api_secret: String,
-    blossom_s3: Option<BlossomS3Sync>,
     query: Query,
     command: Command,
 }
@@ -72,7 +30,6 @@ impl Infra {
         let livekit_api_key = std::env::var("LIVEKIT_API_KEY").unwrap_or_default();
         let livekit_api_secret = std::env::var("LIVEKIT_API_SECRET").unwrap_or_default();
         let api_secret = std::env::var("ZOOID_API_SECRET").unwrap_or_default();
-        let blossom_s3 = BlossomS3Sync::from_env();
 
         if api_url.trim().is_empty() {
             anyhow::bail!("missing ZOOID_API_URL");
@@ -88,7 +45,6 @@ impl Infra {
             livekit_api_key,
             livekit_api_secret,
             api_secret,
-            blossom_s3,
             query,
             command,
         })
@@ -298,7 +254,6 @@ impl Infra {
             host,
             livekit,
             is_new.then(|| Keys::generate().secret_key().to_secret_hex()),
-            self.blossom_s3.as_ref(),
         );
 
         let url = format!("{}/relay/{}", base, relay.id);
@@ -368,10 +323,7 @@ fn relay_sync_body(
     host: String,
     livekit: serde_json::Value,
     secret: Option<String>,
-    blossom_s3: Option<&BlossomS3Sync>,
 ) -> serde_json::Value {
-    let blossom = blossom_sync_json(relay, blossom_s3);
-
     let mut body = serde_json::json!({
         "host": host,
         "schema": relay.schema,
@@ -389,7 +341,7 @@ fn relay_sync_body(
         },
         "groups": { "enabled": relay.groups_enabled == 1 },
         "management": { "enabled": relay.management_enabled == 1 },
-        "blossom": blossom,
+        "blossom": { "enabled": relay.blossom_enabled == 1 },
         "livekit": livekit,
         "push": { "enabled": relay.push_enabled == 1 },
         "roles": {
@@ -405,51 +357,6 @@ fn relay_sync_body(
     body
 }
 
-fn blossom_sync_json(relay: &Relay, blossom_s3: Option<&BlossomS3Sync>) -> serde_json::Value {
-    let enabled = relay.blossom_enabled == 1;
-    if !enabled {
-        return serde_json::json!({ "enabled": false });
-    }
-
-    let Some(s3) = blossom_s3 else {
-        return serde_json::json!({ "enabled": true });
-    };
-
-    let mut s3_obj = serde_json::Map::new();
-    if !s3.endpoint.trim().is_empty() {
-        s3_obj.insert(
-            "endpoint".to_string(),
-            serde_json::Value::String(s3.endpoint.clone()),
-        );
-    }
-    s3_obj.insert(
-        "region".to_string(),
-        serde_json::Value::String(s3.region.clone()),
-    );
-    s3_obj.insert(
-        "bucket".to_string(),
-        serde_json::Value::String(s3.bucket.clone()),
-    );
-    s3_obj.insert(
-        "access_key".to_string(),
-        serde_json::Value::String(s3.access_key.clone()),
-    );
-    s3_obj.insert(
-        "secret_key".to_string(),
-        serde_json::Value::String(s3.secret_key.clone()),
-    );
-    s3_obj.insert(
-        "key_prefix".to_string(),
-        serde_json::Value::String(relay.schema.clone()),
-    );
-
-    serde_json::json!({
-        "enabled": true,
-        "adapter": "s3",
-        "s3": serde_json::Value::Object(s3_obj),
-    })
-}
-
 fn should_sync_relay_activity(activity_type: &str) -> bool {
     matches!(
         activity_type,

backend/src/lib.rs

@@ -1,11 +1,8 @@
 pub mod api;
 pub mod billing;
-pub mod bitcoin;
-pub mod cipher;
 pub mod command;
 pub mod infra;
 pub mod models;
 pub mod pool;
 pub mod query;
 pub mod robot;
-pub mod stripe;

backend/src/main.rs

@@ -1,14 +1,11 @@
 mod api;
 mod billing;
-mod bitcoin;
-mod cipher;
 mod command;
 mod infra;
 mod models;
 mod pool;
 mod query;
 mod robot;
-mod stripe;
 
 use anyhow::Result;
 use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};

backend/src/query.rs

@@ -184,6 +184,17 @@ impl Query {
         Ok(bolt11)
     }
 
+    pub async fn has_active_paid_relays(&self, tenant_id: &str) -> Result<bool> {
+        let plans = sqlx::query_scalar::<_, String>(
+            "SELECT plan FROM relay WHERE tenant = ? AND status = 'active'",
+        )
+        .bind(tenant_id)
+        .fetch_all(&self.pool)
+        .await?;
+
+        Ok(plans.into_iter().any(|plan| Self::is_paid_plan(&plan)))
+    }
+
     pub async fn list_activity_for_relay(&self, relay_id: &str) -> Result<Vec<Activity>> {
         let rows = sqlx::query_as::<_, Activity>(
             "SELECT id, tenant, created_at, activity_type, resource_type, resource_id

backend/src/robot.rs

@@ -160,25 +160,6 @@ impl Robot {
         Ok(relays)
     }
 
-    pub async fn fetch_nostr_name(&self, pubkey: &str) -> Option<String> {
-        let pubkey = PublicKey::parse(pubkey).ok()?;
-        let filter = Filter::new().author(pubkey).kind(Kind::Metadata).limit(1);
-        let events = self
-            .indexer_client
-            .fetch_events(filter, Duration::from_secs(5))
-            .await
-            .ok()?;
-        let event = events.into_iter().max_by_key(|e| e.created_at)?;
-        let content: serde_json::Value = serde_json::from_str(&event.content).ok()?;
-        let name = content
-            .get("display_name")
-            .or_else(|| content.get("name"))
-            .and_then(|v| v.as_str())
-            .map(|s| s.trim().to_string())
-            .filter(|s| !s.is_empty())?;
-        Some(name)
-    }
-
     async fn fetch_messaging_relays_from_outbox(
         &self,
         recipient: &str,

backend/src/stripe.rs

@@ -1,482 +0,0 @@
-//! A thin async wrapper around the subset of the Stripe REST API this service uses.
-//!
-//! Nothing here knows about relays, tenants, or our database — it just speaks HTTP
-//! to Stripe and hands back `serde_json::Value` (or small typed results). The
-//! domain logic lives in [`crate::billing`].
-
-use anyhow::{Result, anyhow};
-use hmac::{Hmac, Mac};
-use sha2::Sha256;
-use std::collections::BTreeMap;
-
-type HmacSha256 = Hmac<Sha256>;
-
-const STRIPE_API: &str = "https://api.stripe.com/v1";
-const WEBHOOK_TOLERANCE_SECS: i64 = 300;
-
-/// Error returned by invoice lookups, distinguishing a Stripe 4xx (e.g. "no such
-/// invoice") — which callers usually want to surface as a client error — from an
-/// internal failure.
-#[derive(Debug)]
-pub enum InvoiceLookupError {
-    StripeClient { status: reqwest::StatusCode },
-    Internal(anyhow::Error),
-}
-
-impl std::fmt::Display for InvoiceLookupError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self {
-            Self::StripeClient { status } => {
-                write!(
-                    f,
-                    "stripe invoice lookup failed with status {}",
-                    status.as_u16()
-                )
-            }
-            Self::Internal(error) => write!(f, "{error}"),
-        }
-    }
-}
-
-impl std::error::Error for InvoiceLookupError {}
-
-impl From<anyhow::Error> for InvoiceLookupError {
-    fn from(value: anyhow::Error) -> Self {
-        Self::Internal(value)
-    }
-}
-
-impl From<reqwest::Error> for InvoiceLookupError {
-    fn from(value: reqwest::Error) -> Self {
-        Self::Internal(value.into())
-    }
-}
-
-/// A Stripe webhook event with its signature already verified.
-#[derive(serde::Deserialize)]
-pub struct Event {
-    #[serde(rename = "type")]
-    pub event_type: String,
-    pub data: EventData,
-}
-
-#[derive(serde::Deserialize)]
-pub struct EventData {
-    pub object: serde_json::Value,
-}
-
-#[derive(Clone)]
-pub struct Stripe {
-    pub(crate) secret_key: String,
-    pub(crate) webhook_secret: String,
-    http: reqwest::Client,
-}
-
-impl Stripe {
-    /// Builds the client from the environment: `STRIPE_SECRET_KEY` and
-    /// `STRIPE_WEBHOOK_SECRET`, both required. Panics if either is missing or blank.
-    pub fn from_env() -> Self {
-        let secret_key = std::env::var("STRIPE_SECRET_KEY").unwrap_or_default();
-        if secret_key.trim().is_empty() {
-            panic!("missing STRIPE_SECRET_KEY environment variable");
-        }
-        let webhook_secret = std::env::var("STRIPE_WEBHOOK_SECRET").unwrap_or_default();
-        if webhook_secret.trim().is_empty() {
-            panic!("missing STRIPE_WEBHOOK_SECRET environment variable");
-        }
-        Self::new(secret_key, webhook_secret)
-    }
-
-    pub fn new(secret_key: String, webhook_secret: String) -> Self {
-        Self {
-            secret_key,
-            webhook_secret,
-            http: reqwest::Client::new(),
-        }
-    }
-
-    // --- Customers ---
-
-    /// Creates a customer with the given display name, tagging it with the tenant
-    /// pubkey in metadata. Idempotent on the tenant pubkey.
-    pub async fn create_customer(&self, name: &str, tenant_pubkey: &str) -> Result<String> {
-        let resp = self
-            .http
-            .post(format!("{STRIPE_API}/customers"))
-            .bearer_auth(&self.secret_key)
-            .header(
-                "Idempotency-Key",
-                self.idempotency_key(&["create_customer", tenant_pubkey]),
-            )
-            .form(&[("name", name), ("metadata[tenant_pubkey]", tenant_pubkey)])
-            .send()
-            .await?;
-
-        let body: serde_json::Value = error_for_status(resp).await?.json().await?;
-        let customer_id = body["id"]
-            .as_str()
-            .ok_or_else(|| anyhow!("missing customer id"))?;
-        if !customer_id.starts_with("cus_") {
-            return Err(anyhow!("unexpected customer id format"));
-        }
-        Ok(customer_id.to_string())
-    }
-
-    // --- Subscriptions ---
-
-    /// Fetches a subscription, returning `None` if Stripe no longer knows about it
-    /// (so callers can recover from a stale subscription id).
-    pub async fn get_subscription(
-        &self,
-        subscription_id: &str,
-    ) -> Result<Option<serde_json::Value>> {
-        let resp = self
-            .http
-            .get(format!("{STRIPE_API}/subscriptions/{subscription_id}"))
-            .bearer_auth(&self.secret_key)
-            .send()
-            .await?;
-        if resp.status() == reqwest::StatusCode::NOT_FOUND {
-            return Ok(None);
-        }
-        let body: serde_json::Value = error_for_status(resp).await?.json().await?;
-        Ok(Some(body))
-    }
-
-    /// Creates a subscription with one item per `(price_id, quantity)` entry, billed
-    /// automatically. Returns the subscription id and a map from price id to the
-    /// created subscription item id. Idempotent on the customer and the item set.
-    pub async fn create_subscription(
-        &self,
-        customer_id: &str,
-        items: &BTreeMap<String, i64>,
-    ) -> Result<(String, BTreeMap<String, String>)> {
-        let mut form: Vec<(String, String)> = vec![
-            ("customer".to_string(), customer_id.to_string()),
-            (
-                "collection_method".to_string(),
-                "charge_automatically".to_string(),
-            ),
-        ];
-        let mut key_parts: Vec<String> =
-            vec!["create_subscription".to_string(), customer_id.to_string()];
-        for (index, (price_id, quantity)) in items.iter().enumerate() {
-            form.push((format!("items[{index}][price]"), price_id.clone()));
-            form.push((format!("items[{index}][quantity]"), quantity.to_string()));
-            key_parts.push(format!("{price_id}={quantity}"));
-        }
-        let key_refs: Vec<&str> = key_parts.iter().map(String::as_str).collect();
-
-        let resp = self
-            .http
-            .post(format!("{STRIPE_API}/subscriptions"))
-            .bearer_auth(&self.secret_key)
-            .header("Idempotency-Key", self.idempotency_key(&key_refs))
-            .form(&form)
-            .send()
-            .await?;
-        let body: serde_json::Value = error_for_status(resp).await?.json().await?;
-
-        let subscription_id = body["id"]
-            .as_str()
-            .ok_or_else(|| anyhow!("missing subscription id"))?
-            .to_string();
-        let mut price_to_item = BTreeMap::new();
-        for item in body["items"]["data"]
-            .as_array()
-            .ok_or_else(|| anyhow!("missing subscription items"))?
-        {
-            let item_id = item["id"]
-                .as_str()
-                .ok_or_else(|| anyhow!("missing subscription item id"))?;
-            let price_id = item["price"]["id"]
-                .as_str()
-                .ok_or_else(|| anyhow!("missing subscription item price id"))?;
-            price_to_item.insert(price_id.to_string(), item_id.to_string());
-        }
-        Ok((subscription_id, price_to_item))
-    }
-
-    pub async fn create_subscription_item(
-        &self,
-        subscription_id: &str,
-        price_id: &str,
-        quantity: i64,
-    ) -> Result<String> {
-        let quantity = quantity.to_string();
-        let resp = self
-            .http
-            .post(format!("{STRIPE_API}/subscription_items"))
-            .bearer_auth(&self.secret_key)
-            .header(
-                "Idempotency-Key",
-                self.idempotency_key(&["create_subscription_item", subscription_id, price_id]),
-            )
-            .form(&[
-                ("subscription", subscription_id),
-                ("price", price_id),
-                ("quantity", quantity.as_str()),
-            ])
-            .send()
-            .await?;
-        let body: serde_json::Value = error_for_status(resp).await?.json().await?;
-        body["id"]
-            .as_str()
-            .map(str::to_string)
-            .ok_or_else(|| anyhow!("missing subscription item id"))
-    }
-
-    /// Sets a subscription item's quantity. No idempotency key: this is a
-    /// reconcile-to-desired-state write, and re-applying the same target is a no-op.
-    pub async fn set_subscription_item_quantity(&self, item_id: &str, quantity: i64) -> Result<()> {
-        let resp = self
-            .http
-            .post(format!("{STRIPE_API}/subscription_items/{item_id}"))
-            .bearer_auth(&self.secret_key)
-            .form(&[("quantity", quantity.to_string())])
-            .send()
-            .await?;
-        error_for_status(resp).await?;
-        Ok(())
-    }
-
-    pub async fn delete_subscription_item(&self, item_id: &str) -> Result<()> {
-        let resp = self
-            .http
-            .delete(format!("{STRIPE_API}/subscription_items/{item_id}"))
-            .bearer_auth(&self.secret_key)
-            .send()
-            .await?;
-        error_for_status(resp).await?;
-        Ok(())
-    }
-
-    pub async fn cancel_subscription(&self, subscription_id: &str) -> Result<()> {
-        let resp = self
-            .http
-            .delete(format!("{STRIPE_API}/subscriptions/{subscription_id}"))
-            .bearer_auth(&self.secret_key)
-            .send()
-            .await?;
-        error_for_status(resp).await?;
-        Ok(())
-    }
-
-    // --- Invoices ---
-
-    /// Returns the `data` array of the customer's invoices.
-    pub async fn list_invoices(&self, customer_id: &str) -> Result<serde_json::Value> {
-        let resp = self
-            .http
-            .get(format!("{STRIPE_API}/invoices"))
-            .bearer_auth(&self.secret_key)
-            .query(&[("customer", customer_id)])
-            .send()
-            .await?;
-        let body: serde_json::Value = error_for_status(resp).await?.json().await?;
-        Ok(body["data"].clone())
-    }
-
-    pub async fn get_invoice(
-        &self,
-        invoice_id: &str,
-    ) -> std::result::Result<serde_json::Value, InvoiceLookupError> {
-        let resp = self
-            .http
-            .get(format!("{STRIPE_API}/invoices/{invoice_id}"))
-            .bearer_auth(&self.secret_key)
-            .send()
-            .await?;
-        if resp.status().is_client_error() {
-            return Err(InvoiceLookupError::StripeClient {
-                status: resp.status(),
-            });
-        }
-        let body: serde_json::Value = error_for_status(resp).await?.json().await?;
-        Ok(body)
-    }
-
-    pub async fn pay_invoice(&self, invoice_id: &str) -> Result<()> {
-        let resp = self
-            .http
-            .post(format!("{STRIPE_API}/invoices/{invoice_id}/pay"))
-            .bearer_auth(&self.secret_key)
-            .header(
-                "Idempotency-Key",
-                self.idempotency_key(&["pay_invoice", invoice_id]),
-            )
-            .send()
-            .await?;
-        error_for_status(resp).await?;
-        Ok(())
-    }
-
-    /// Marks an invoice paid out of band — used when we've collected payment over
-    /// Lightning rather than through Stripe.
-    pub async fn pay_invoice_out_of_band(&self, invoice_id: &str) -> Result<()> {
-        let resp = self
-            .http
-            .post(format!("{STRIPE_API}/invoices/{invoice_id}/pay"))
-            .bearer_auth(&self.secret_key)
-            .header(
-                "Idempotency-Key",
-                self.idempotency_key(&["pay_invoice_oob", invoice_id]),
-            )
-            .form(&[("paid_out_of_band", "true")])
-            .send()
-            .await?;
-        error_for_status(resp).await?;
-        Ok(())
-    }
-
-    pub async fn preview_upcoming_invoice(
-        &self,
-        customer_id: &str,
-        subscription_id: Option<&str>,
-    ) -> Result<serde_json::Value> {
-        let mut req = self
-            .http
-            .get(format!("{STRIPE_API}/invoices/upcoming"))
-            .bearer_auth(&self.secret_key)
-            .query(&[("customer", customer_id)]);
-        if let Some(subscription_id) = subscription_id {
-            req = req.query(&[("subscription", subscription_id)]);
-        }
-        let body: serde_json::Value = error_for_status(req.send().await?).await?.json().await?;
-        Ok(body)
-    }
-
-    // --- Payment methods ---
-
-    pub async fn has_payment_method(&self, customer_id: &str) -> Result<bool> {
-        let resp = self
-            .http
-            .get(format!("{STRIPE_API}/payment_methods"))
-            .bearer_auth(&self.secret_key)
-            .query(&[("customer", customer_id), ("type", "card")])
-            .send()
-            .await?;
-        let body: serde_json::Value = error_for_status(resp).await?.json().await?;
-        Ok(body["data"].as_array().is_some_and(|a| !a.is_empty()))
-    }
-
-    // --- Billing portal ---
-
-    pub async fn create_portal_session(
-        &self,
-        customer_id: &str,
-        return_url: Option<&str>,
-    ) -> Result<String> {
-        let mut params = vec![("customer", customer_id.to_string())];
-        if let Some(url) = return_url {
-            params.push(("return_url", url.to_string()));
-        }
-        let resp = self
-            .http
-            .post(format!("{STRIPE_API}/billing_portal/sessions"))
-            .bearer_auth(&self.secret_key)
-            .form(&params)
-            .send()
-            .await?;
-        let body: serde_json::Value = error_for_status(resp).await?.json().await?;
-        body["url"]
-            .as_str()
-            .map(str::to_string)
-            .ok_or_else(|| anyhow!("missing portal session url"))
-    }
-
-    // --- Webhooks ---
-
-    /// Verifies the `Stripe-Signature` header against the configured webhook secret
-    /// (including the timestamp tolerance check) and parses the event body.
-    pub fn construct_event(&self, payload: &str, sig_header: &str) -> Result<Event> {
-        self.verify_webhook_signature(payload, sig_header)?;
-        Ok(serde_json::from_str(payload)?)
-    }
-
-    fn verify_webhook_signature(&self, payload: &str, sig_header: &str) -> Result<()> {
-        let mut timestamp = None;
-        let mut signature = None;
-        for part in sig_header.split(',') {
-            if let Some(t) = part.strip_prefix("t=") {
-                timestamp = Some(t);
-            } else if let Some(v) = part.strip_prefix("v1=") {
-                signature = Some(v);
-            }
-        }
-        let timestamp = timestamp.ok_or_else(|| anyhow!("missing webhook timestamp"))?;
-        let signature = signature.ok_or_else(|| anyhow!("missing webhook signature"))?;
-
-        let signed_payload = format!("{timestamp}.{payload}");
-        let mut mac = HmacSha256::new_from_slice(self.webhook_secret.as_bytes())
-            .map_err(|e| anyhow!("invalid webhook secret: {e}"))?;
-        mac.update(signed_payload.as_bytes());
-        let expected = hex::encode(mac.finalize().into_bytes());
-        if expected != signature {
-            return Err(anyhow!("webhook signature mismatch"));
-        }
-
-        let ts: i64 = timestamp
-            .parse()
-            .map_err(|_| anyhow!("bad webhook timestamp"))?;
-        let now = chrono::Utc::now().timestamp();
-        if (now - ts).abs() > WEBHOOK_TOLERANCE_SECS {
-            return Err(anyhow!("webhook timestamp outside tolerance"));
-        }
-        Ok(())
-    }
-
-    // --- Internals ---
-
-    /// Derives a stable idempotency key by HMAC-ing `parts` with the secret key.
-    fn idempotency_key(&self, parts: &[&str]) -> String {
-        let mut mac = HmacSha256::new_from_slice(self.secret_key.as_bytes())
-            .expect("HMAC accepts any key length");
-        for (i, part) in parts.iter().enumerate() {
-            if i > 0 {
-                mac.update(b":");
-            }
-            mac.update(part.as_bytes());
-        }
-        hex::encode(mac.finalize().into_bytes())
-    }
-}
-
-/// Like [`reqwest::Response::error_for_status`], but on a 4xx/5xx response it reads
-/// the body and folds Stripe's JSON error payload (`error.message`/`code`/`param`)
-/// into the returned error, so callers get an actionable message instead of a bare
-/// "400 Bad Request" with only the URL.
-async fn error_for_status(resp: reqwest::Response) -> Result<reqwest::Response> {
-    let status = resp.status();
-    if !status.is_client_error() && !status.is_server_error() {
-        return Ok(resp);
-    }
-
-    let url = resp.url().clone();
-    let body = resp.text().await.unwrap_or_default();
-    let detail = serde_json::from_str::<serde_json::Value>(&body)
-        .ok()
-        .and_then(|json| {
-            let error = &json["error"];
-            let message = error["message"].as_str()?.to_string();
-            let mut detail = message;
-            if let Some(code) = error["type"].as_str().or_else(|| error["code"].as_str()) {
-                detail.push_str(&format!(" [{code}]"));
-            }
-            if let Some(param) = error["param"].as_str() {
-                detail.push_str(&format!(" (param: {param})"));
-            }
-            Some(detail)
-        })
-        .unwrap_or_else(|| {
-            if body.trim().is_empty() {
-                "<empty response body>".to_string()
-            } else {
-                body
-            }
-        });
-
-    Err(anyhow!(
-        "Stripe API request to {url} failed with status {status}: {detail}"
-    ))
-}

backend/tests/btc_quote_stub.rs

@@ -0,0 +1,31 @@
+use axum::{Json, Router, routing::get};
+use backend::billing::{fetch_btc_spot_price_from_base, fiat_minor_to_msats_from_quote};
+
+#[tokio::test]
+async fn quote_endpoint_can_be_stubbed_deterministically() {
+    async fn spot() -> Json<serde_json::Value> {
+        Json(serde_json::json!({ "data": { "amount": "50000.00" } }))
+    }
+
+    let app = Router::new().route("/v2/prices/BTC-USD/spot", get(spot));
+
+    let listener = tokio::net::TcpListener::bind("127.0.0.1:0")
+        .await
+        .expect("bind test server");
+    let addr = listener.local_addr().expect("get local addr");
+    tokio::spawn(async move {
+        axum::serve(listener, app).await.expect("serve quote stub");
+    });
+
+    let client = reqwest::Client::new();
+    let base = format!("http://{addr}/v2/prices");
+    let btc_price = fetch_btc_spot_price_from_base(&client, &base, "USD")
+        .await
+        .expect("fetch stubbed quote");
+
+    assert_eq!(btc_price, 50_000.0);
+
+    let msats =
+        fiat_minor_to_msats_from_quote(100, "USD", btc_price).expect("convert quoted fiat amount");
+    assert_eq!(msats, 2_000_000);
+}

frontend/src/components/PaymentSetup.tsx

@@ -40,7 +40,7 @@ export default function PaymentSetup(props: PaymentSetupProps) {
     setRedirecting(true)
     setError("")
     try {
-      const { url } = await createPortalSession(account()!.pubkey, window.location.href)
+      const { url } = await createPortalSession(account()!.pubkey)
       window.location.href = url
     } catch (e) {
       setError(e instanceof Error ? e.message : "Failed to open billing portal")

frontend/src/lib/api.ts

@@ -253,9 +253,8 @@ export function reactivateRelay(id: string) {
   return callApi<undefined, void>("POST", `/relays/${id}/reactivate`)
 }
 
-export function createPortalSession(pubkey: string, returnUrl?: string) {
-  const query = returnUrl ? `?return_url=${encodeURIComponent(returnUrl)}` : ""
-  return callApi<undefined, { url: string }>("GET", `/tenants/${pubkey}/stripe/session${query}`)
+export function createPortalSession(pubkey: string) {
+  return callApi<undefined, { url: string }>("GET", `/tenants/${pubkey}/stripe/session`)
 }
 
 export function getInvoiceBolt11(invoiceId: string) {

frontend/src/lib/useRelayToggles.ts

@@ -1,5 +1,5 @@
 import { createSignal } from "solid-js"
-import { updateRelayById, deactivateRelayById, reactivateRelayById, getLatestOpenInvoice, tenantNeedsPaymentSetup, type Relay } from "@/lib/hooks"
+import { updateRelayById, deactivateRelayById, reactivateRelayById, getLatestOpenInvoice, type Relay } from "@/lib/hooks"
 import { setToastMessage } from "@/components/Toast"
 import type { Invoice, PlanId } from "@/lib/api"
 
@@ -31,7 +31,6 @@ export default function useRelayToggles(
 ) {
   const [busy, setBusy] = createSignal(false)
   const [pendingInvoice, setPendingInvoice] = createSignal<Invoice | undefined>()
-  const [pendingPaymentSetup, setPendingPaymentSetup] = createSignal(false)
 
   async function updateRelay(next: Relay, previous: Relay) {
     mutate(next)
@@ -102,12 +101,8 @@ export default function useRelayToggles(
     }
 
     if (plan !== "free") {
-      const needsSetup = await tenantNeedsPaymentSetup()
-      if (needsSetup) {
-        const invoice = await getLatestOpenInvoice()
-        if (invoice) setPendingInvoice(invoice)
-        setPendingPaymentSetup(true)
-      }
+      const invoice = await getLatestOpenInvoice()
+      if (invoice) setPendingInvoice(invoice)
     }
   }
 
@@ -121,5 +116,5 @@ export default function useRelayToggles(
     onToggleLivekitSupport: () => toggle("livekit_enabled", relay()?.plan !== "free"),
   }
 
-  return { busy, handleDeactivate, handleReactivate, handleUpdatePlan, pendingInvoice, clearPendingInvoice: () => setPendingInvoice(undefined), pendingPaymentSetup, clearPendingPaymentSetup: () => setPendingPaymentSetup(false), toggles }
+  return { busy, handleDeactivate, handleReactivate, handleUpdatePlan, pendingInvoice, clearPendingInvoice: () => setPendingInvoice(undefined), toggles }
 }

frontend/src/pages/Account.tsx

@@ -49,7 +49,7 @@ export default function Account() {
   async function openPortal() {
     setPortalLoading(true)
     try {
-      const { url } = await createPortalSession(account()!.pubkey, window.location.href)
+      const { url } = await createPortalSession(account()!.pubkey)
       window.location.href = url
     } catch (e) {
       setError(e instanceof Error ? e.message : "Failed to open billing portal")

frontend/src/pages/relays/RelayDetail.tsx

@@ -1,5 +1,5 @@
 import { useParams } from "@solidjs/router"
-import { createEffect, createMemo, createResource, createSignal, Show } from "solid-js"
+import { createMemo, createResource, createSignal, Show } from "solid-js"
 import BackLink from "@/components/BackLink"
 import PageContainer from "@/components/PageContainer"
 import PaymentDialog from "@/components/PaymentDialog"
@@ -28,20 +28,13 @@ export default function RelayDetail() {
   })
   const loading = useMinLoading(() => relay.loading && !relay())
   const [activity] = useRelayActivity(relayId)
-  const { busy, handleDeactivate, handleReactivate, handleUpdatePlan, pendingInvoice, clearPendingInvoice, pendingPaymentSetup, clearPendingPaymentSetup, toggles } = useRelayToggles(relayId, relay, { refetch, mutate })
+  const { busy, handleDeactivate, handleReactivate, handleUpdatePlan, pendingInvoice, clearPendingInvoice, toggles } = useRelayToggles(relayId, relay, { refetch, mutate })
 
   const [tenant, { refetch: refetchTenant }] = useTenant()
   const [paymentSetupOpen, setPaymentSetupOpen] = createSignal(false)
   const [invoiceDialogOpen, setInvoiceDialogOpen] = createSignal(false)
   const [paymentBannerDismissed, setPaymentBannerDismissed] = createSignal(false)
 
-  createEffect(() => {
-    if (pendingPaymentSetup() && !pendingInvoice()) {
-      setPaymentSetupOpen(true)
-      clearPendingPaymentSetup()
-    }
-  })
-
   const isPaidRelay = createMemo(() => {
     const r = relay()
     if (!r) return false

frontend/src/pages/relays/RelayNew.tsx

@@ -3,15 +3,13 @@ import { useNavigate } from "@solidjs/router"
 import BackLink from "@/components/BackLink"
 import PageContainer from "@/components/PageContainer"
 import PaymentDialog from "@/components/PaymentDialog"
-import PaymentSetup from "@/components/PaymentSetup"
 import RelayForm, { type RelayFormValues } from "@/components/RelayForm"
-import { createRelayForActiveTenant, getLatestOpenInvoice, tenantNeedsPaymentSetup } from "@/lib/hooks"
+import { createRelayForActiveTenant, getLatestOpenInvoice } from "@/lib/hooks"
 import type { Invoice } from "@/lib/api"
 
 export default function RelayNew() {
   const navigate = useNavigate()
   const [pendingInvoice, setPendingInvoice] = createSignal<Invoice | undefined>()
-  const [paymentSetupOpen, setPaymentSetupOpen] = createSignal(false)
   let createdRelayId = ""
 
   async function handleSubmit(values: RelayFormValues) {
@@ -19,14 +17,9 @@ export default function RelayNew() {
     createdRelayId = relay.id
 
     if (values.plan !== "free") {
-      const needsSetup = await tenantNeedsPaymentSetup()
-      if (needsSetup) {
-        const invoice = await getLatestOpenInvoice()
-        if (invoice) {
-          setPendingInvoice(invoice)
-          return
-        }
-        setPaymentSetupOpen(true)
+      const invoice = await getLatestOpenInvoice()
+      if (invoice) {
+        setPendingInvoice(invoice)
         return
       }
     }
@@ -34,13 +27,8 @@ export default function RelayNew() {
     navigate(`/relays/${relay.id}`)
   }
 
-  function handleInvoiceClose() {
+  function handleDialogClose() {
     setPendingInvoice(undefined)
-    setPaymentSetupOpen(true)
-  }
-
-  function handleSetupClose() {
-    setPaymentSetupOpen(false)
     navigate(`/relays/${createdRelayId}`)
   }
 
@@ -59,14 +47,10 @@ export default function RelayNew() {
           <PaymentDialog
             invoice={inv()}
             open={true}
-            onClose={handleInvoiceClose}
+            onClose={handleDialogClose}
           />
         )}
       </Show>
-      <PaymentSetup
-        open={paymentSetupOpen()}
-        onClose={handleSetupClose}
-      />
     </PageContainer>
   )
 }

justfile

@@ -5,9 +5,6 @@ dev:
   cd frontend && bun dev &
   wait
 
-dev-backend:
-  cd backend && onchange src -ik -- bash -c 'RUST_LOG=backend=info cargo run'
-
 dev-frontend:
   cd frontend && bun run dev
 
@@ -30,7 +27,7 @@ build-backend:
   cd backend && cargo build
 
 build-frontend:
-  cd frontend && bun i && bun run build
+  cd frontend && bun run build
 
 fmt: fmt-backend