fix: Add service containers and fix test failures

- Add Redis and RabbitMQ services to CI workflow
- Fix Jinja2 template error by passing file=None in error cases
- Fix test expecting dict response format for list_files endpoint
- Fix NOT NULL constraint by providing valid local_filename
- Fix retry-subtask to validate subtask name before checking processed file
- Add mock for process_document in reprocess test

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

app/api/files.py

@@ -437,30 +437,6 @@ def retry_subtask(
         if not file_record:
             raise HTTPException(status_code=404, detail=f"File with ID {file_id} not found")
         
-        # Check for processed file (upload tasks work with processed files)
-        workdir = settings.workdir
-        processed_dir = os.path.join(workdir, "processed")
-        
-        # Try to find the processed file
-        base_filename = os.path.splitext(file_record.original_filename)[0]
-        potential_paths = [
-            os.path.join(processed_dir, f"{file_record.filehash}.pdf"),
-            os.path.join(processed_dir, f"{base_filename}_processed.pdf"),
-            os.path.join(processed_dir, file_record.original_filename),
-        ]
-        
-        file_path = None
-        for path in potential_paths:
-            if os.path.exists(path):
-                file_path = path
-                break
-        
-        if not file_path:
-            raise HTTPException(
-                status_code=400,
-                detail="Processed file not found. Cannot retry upload."
-            )
-        
         # Map subtask names to their corresponding Celery tasks
         from app.tasks.upload_to_dropbox import upload_to_dropbox
         from app.tasks.upload_to_nextcloud import upload_to_nextcloud
@@ -492,6 +468,30 @@ def retry_subtask(
                 detail=f"Invalid subtask name: {subtask_name}. Must be one of: {', '.join(task_map.keys())}"
             )
         
+        # Check for processed file (upload tasks work with processed files)
+        workdir = settings.workdir
+        processed_dir = os.path.join(workdir, "processed")
+        
+        # Try to find the processed file
+        base_filename = os.path.splitext(file_record.original_filename)[0]
+        potential_paths = [
+            os.path.join(processed_dir, f"{file_record.filehash}.pdf"),
+            os.path.join(processed_dir, f"{base_filename}_processed.pdf"),
+            os.path.join(processed_dir, file_record.original_filename),
+        ]
+        
+        file_path = None
+        for path in potential_paths:
+            if os.path.exists(path):
+                file_path = path
+                break
+        
+        if not file_path:
+            raise HTTPException(
+                status_code=400,
+                detail="Processed file not found. Cannot retry upload."
+            )
+        
         # Queue the specific upload task
         upload_task = task_map[subtask_name]
         task = upload_task.delay(file_path, file_id)