HTTP API: register, list and remove webhooks, kept across restarts (closes #6)

An external app can register webhooks on a chat (`POST /api/v1/chats/{id}/webhooks` with a URL), list them, and remove one. Registering the same URL again returns the existing registration. Registrations are kept in `$DATA_DIR/webhooks.json`, rewritten whole on each change through a file created 0600, synced and renamed, so a crash leaves the old file or the new one; a file present but unreadable stops startup. Delivery of incoming messages is the next unit. Disclosures: the JSON body reading is now one helper shared with the send endpoint; gosec G304 is suppressed on reading the webhooks file; the 0600-from-creation claim rests on `os.CreateTemp`'s source, not a system-call trace. Model: opus-5-5
2026-09-29 08:38:13 +02:00
parent f53b666119
commit 397fc95149
11 changed files with 1018 additions and 47 deletions
@@ -27,6 +27,8 @@ with no deprecation warning.

 # Completed Steps

+- 2026-09-29 `POST`, `GET` and `DELETE` on a chat's webhooks, under
+  `/api/v1/chats/{id}/webhooks`, kept in `$DATA_DIR/webhooks.json`
 - 2026-09-29 `GET` and `POST /api/v1/chats/{id}/messages`: a chat's
  latest messages, and sending one
 - 2026-09-29 Added the HTTP API in `internal/api`: the server on `PORT`,