feat(rooms): add webhook for transcript completion (#578)

* feat(rooms): add webhook notifications for transcript completion

- Add webhook_url and webhook_secret fields to rooms table
- Create Celery task with 24-hour retry window using exponential backoff
- Send transcript metadata, diarized text, topics, and summaries via webhook
- Add HMAC signature verification for webhook security
- Add test endpoint POST /v1/rooms/{room_id}/webhook/test
- Update frontend with webhook configuration UI and test button
- Auto-generate webhook secret if not provided
- Trigger webhook after successful file pipeline processing for room recordings

* style: linting

* fix: remove unwanted files

* fix: update openapi gen

* fix: self-review

* docs: add comprehensive webhook documentation

- Document webhook configuration, events, and payloads
- Include transcript.completed and test event examples
- Add security considerations and best practices
- Provide example webhook receiver implementation
- Document retry policy and signature verification

* fix: remove audio_mp3_url from webhook payload

- Remove audio download URL generation from webhook
- Update documentation to reflect the change
- Keep only frontend_url for accessing transcripts

* docs: remove unwanted section

* fix: correct API method name and type imports for rooms

- Fix v1RoomsRetrieve to v1RoomsGet
- Update Room type to RoomDetails throughout frontend
- Fix type imports in useRoomList, RoomList, RoomTable, and RoomCards

* feat: add show/hide toggle for webhook secret field

- Add eye icon button to reveal/hide webhook secret when editing
- Show password dots when webhook secret is hidden
- Reset visibility state when opening/closing dialog
- Only show toggle button when editing existing room with secret

* fix: resolve event loop conflict in webhook test endpoint

- Extract webhook test logic into shared async function
- Call async function directly from FastAPI endpoint
- Keep Celery task wrapper for background processing
- Fixes RuntimeError: event loop already running

* refactor: remove unnecessary Celery task for webhook testing

- Webhook testing is synchronous and provides immediate feedback
- No need for background processing via Celery
- Keep only the async function called directly from API endpoint

* feat: improve webhook test error messages and display

- Show HTTP status code in error messages
- Parse JSON error responses to extract meaningful messages
- Improved UI layout for webhook test results
- Added colored background for success/error states
- Better text wrapping for long error messages

* docs: adjust doc

* fix: review

* fix: update attempts to match close 24h

* fix: add event_id

* fix: changed to uuid, to have new event_id when reprocess.

* style: linting

* fix: alembic revision

server/reflector/pipelines/main_file_pipeline.py

@@ -7,6 +7,7 @@ Uses parallel processing for transcription, diarization, and waveform generation
 """
 
 import asyncio
+import uuid
 from pathlib import Path
 
 import av
@@ -14,7 +15,9 @@ import structlog
 from celery import shared_task
 
 from reflector.asynctask import asynctask
+from reflector.db.rooms import rooms_controller
 from reflector.db.transcripts import (
+    SourceKind,
     Transcript,
     TranscriptStatus,
     transcripts_controller,
@@ -48,6 +51,7 @@ from reflector.processors.types import (
 )
 from reflector.settings import settings
 from reflector.storage import get_transcripts_storage
+from reflector.worker.webhook import send_transcript_webhook
 
 
 class EmptyPipeline:
@@ -385,7 +389,6 @@ async def task_pipeline_file_process(*, transcript_id: str):
         raise Exception(f"Transcript {transcript_id} not found")
 
     pipeline = PipelineMainFile(transcript_id=transcript_id)
-
     try:
         await pipeline.set_status(transcript_id, "processing")
 
@@ -402,3 +405,17 @@ async def task_pipeline_file_process(*, transcript_id: str):
     except Exception:
         await pipeline.set_status(transcript_id, "error")
         raise
+
+    # Trigger webhook if this is a room recording with webhook configured
+    if transcript.source_kind == SourceKind.ROOM and transcript.room_id:
+        room = await rooms_controller.get_by_id(transcript.room_id)
+        if room and room.webhook_url:
+            logger.info(
+                "Dispatching webhook task",
+                transcript_id=transcript_id,
+                room_id=room.id,
+                webhook_url=room.webhook_url,
+            )
+            send_transcript_webhook.delay(
+                transcript_id, room.id, event_id=uuid.uuid4().hex
+            )