Dev backend reloads on worker edits too: fastapi dev with --reload-dir over backend and worker, worker in develop.watch

docker/compose.dev.yml

@@ -92,10 +92,18 @@ services:
     build:
       context: ..
       dockerfile: backend/Dockerfile
+    # `fastapi dev`, because `run` takes no `--reload-dir`. Watching the worker
+    # too makes a worker edit restart the engine, which respawns the local
+    # worker pool with the new code.
     command:
       - fastapi
-      - run
-      - --reload
+      - dev
+      - --host
+      - 0.0.0.0
+      - --reload-dir
+      - /app/backend
+      - --reload-dir
+      - /app/worker
       - "fluksio/main.py"
     develop:
       watch:
@@ -107,6 +115,9 @@ services:
             - .venv
         - path: ../backend/pyproject.toml
           action: rebuild
+        - path: ../worker/fluksio_worker
+          action: sync
+          target: /app/worker/fluksio_worker
     volumes:
       # What makes --reload above mean anything in the detached flow (`make dev`,
       # `make dev-local`): it starts the stack with `up -d`, which never runs the