feat: set hatchet as default for multitracks (#822)

* set hatchet as default for multitracks

* fix: pipeline routing tests for hatchet-default branch

- Create room with use_celery=True to force Celery backend in tests
- Link transcript to room to enable multitrack pipeline routing
- Fixes test failures caused by missing HATCHET_CLIENT_TOKEN in test env

* Update server/reflector/services/transcript_process.py

Co-authored-by: pr-agent-monadical[bot] <198624643+pr-agent-monadical[bot]@users.noreply.github.com>

---------

Co-authored-by: Igor Loskutov <igor.loskutoff@gmail.com>
Co-authored-by: pr-agent-monadical[bot] <198624643+pr-agent-monadical[bot]@users.noreply.github.com>

server/reflector/services/transcript_process.py

@@ -23,7 +23,6 @@ from reflector.pipelines.main_file_pipeline import task_pipeline_file_process
 from reflector.pipelines.main_multitrack_pipeline import (
     task_pipeline_multitrack_process,
 )
-from reflector.settings import settings
 from reflector.utils.string import NonEmptyString
 
 
@@ -102,8 +101,8 @@ async def validate_transcript_for_processing(
     if transcript.locked:
         return ValidationLocked(detail="Recording is locked")
 
-    # hatchet is idempotent anyways + if it wasn't dispatched successfully
-    if transcript.status == "idle" and not settings.HATCHET_ENABLED:
+    # Check if recording is ready for processing
+    if transcript.status == "idle" and not transcript.workflow_run_id:
         return ValidationNotReady(detail="Recording is not ready for processing")
 
     # Check Celery tasks
@@ -116,7 +115,8 @@ async def validate_transcript_for_processing(
     ):
         return ValidationAlreadyScheduled(detail="already running")
 
-    if settings.HATCHET_ENABLED and transcript.workflow_run_id:
+    # Check Hatchet workflow status if workflow_run_id exists
+    if transcript.workflow_run_id:
         try:
             status = await HatchetClientManager.get_workflow_run_status(
                 transcript.workflow_run_id
@@ -181,19 +181,16 @@ async def dispatch_transcript_processing(
     Returns AsyncResult for Celery tasks, None for Hatchet workflows.
     """
     if isinstance(config, MultitrackProcessingConfig):
-        # Check if room has use_hatchet=True (overrides env vars)
-        room_forces_hatchet = False
+        use_celery = False
         if config.room_id:
             room = await rooms_controller.get_by_id(config.room_id)
-            room_forces_hatchet = room.use_hatchet if room else False
+            use_celery = room.use_celery if room else False
 
-        # Start durable workflow if enabled (Hatchet)
-        # and if room has use_hatchet=True
-        use_hatchet = settings.HATCHET_ENABLED and room_forces_hatchet
+        use_hatchet = not use_celery
 
-        if room_forces_hatchet:
+        if use_celery:
             logger.info(
-                "Room forces Hatchet workflow",
+                "Room uses legacy Celery processing",
                 room_id=config.room_id,
                 transcript_id=config.transcript_id,
             )