Add semantic tagging, search, favourite/NSFW filtering, and LLM job queue

Replaces old list-format tags (which duplicated prompt content) with structured
dict tags per category (origin_series, outfit_type, participants, style_type,
scene_type, etc.). Tags are now purely organizational metadata — removed from
the prompt pipeline entirely.

Adds is_favourite and is_nsfw columns to all 8 resource models. Favourite is
DB-only (user preference); NSFW is mirrored in JSON tags for rescan persistence.
All library pages get filter controls and favourites-first sorting.

Introduces a parallel LLM job queue (_enqueue_task + _llm_queue_worker) for
background tag regeneration, with the same status polling UI as ComfyUI jobs.
Fixes call_llm() to use has_request_context() fallback for background threads.

Adds global search (/search) across resources and gallery images, with navbar
search bar. Adds gallery image sidecar JSON for per-image favourite/NSFW metadata.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

routes/queue_api.py

@@ -1,10 +1,14 @@
 import logging
 from services.job_queue import (
-    _job_queue_lock, _job_queue, _job_history, _queue_worker_event,
+    _job_queue_lock, _job_queue, _llm_queue, _job_history,
+    _queue_worker_event, _llm_worker_event,
 )
 
 logger = logging.getLogger('gaze')
 
+# Both queues for iteration
+_ALL_QUEUES = (_job_queue, _llm_queue)
+
 
 def register_routes(app):
 
@@ -12,23 +16,27 @@ def register_routes(app):
     def api_queue_list():
         """Return the current queue as JSON."""
         with _job_queue_lock:
-            jobs = [
-                {
-                    'id': j['id'],
-                    'label': j['label'],
-                    'status': j['status'],
-                    'error': j['error'],
-                    'created_at': j['created_at'],
-                }
-                for j in _job_queue
-            ]
+            jobs = []
+            for q in _ALL_QUEUES:
+                for j in q:
+                    jobs.append({
+                        'id': j['id'],
+                        'label': j['label'],
+                        'status': j['status'],
+                        'error': j['error'],
+                        'created_at': j['created_at'],
+                        'job_type': j.get('job_type', 'comfyui'),
+                    })
         return {'jobs': jobs, 'count': len(jobs)}
 
     @app.route('/api/queue/count')
     def api_queue_count():
         """Return just the count of active (non-done, non-failed) jobs."""
         with _job_queue_lock:
-            count = sum(1 for j in _job_queue if j['status'] in ('pending', 'processing', 'paused'))
+            count = sum(
+                1 for q in _ALL_QUEUES for j in q
+                if j['status'] in ('pending', 'processing', 'paused')
+            )
         return {'count': count}
 
     @app.route('/api/queue/<job_id>/remove', methods=['POST'])
@@ -40,10 +48,12 @@ def register_routes(app):
                 return {'error': 'Job not found'}, 404
             if job['status'] == 'processing':
                 return {'error': 'Cannot remove a job that is currently processing'}, 400
-            try:
-                _job_queue.remove(job)
-            except ValueError:
-                pass  # Already not in queue
+            for q in _ALL_QUEUES:
+                try:
+                    q.remove(job)
+                    break
+                except ValueError:
+                    continue
             job['status'] = 'removed'
         return {'status': 'ok'}
 
@@ -58,24 +68,29 @@ def register_routes(app):
                 job['status'] = 'paused'
             elif job['status'] == 'paused':
                 job['status'] = 'pending'
-                _queue_worker_event.set()
+                # Signal the appropriate worker
+                if job.get('job_type') == 'llm':
+                    _llm_worker_event.set()
+                else:
+                    _queue_worker_event.set()
             else:
                 return {'error': f'Cannot pause/resume job with status {job["status"]}'}, 400
         return {'status': 'ok', 'new_status': job['status']}
 
     @app.route('/api/queue/clear', methods=['POST'])
     def api_queue_clear():
-        """Clear all pending jobs from the queue (allows current processing job to finish)."""
+        """Clear all pending jobs from the queue (allows current processing jobs to finish)."""
         removed_count = 0
         with _job_queue_lock:
-            pending_jobs = [j for j in _job_queue if j['status'] == 'pending']
-            for job in pending_jobs:
-                try:
-                    _job_queue.remove(job)
-                    job['status'] = 'removed'
-                    removed_count += 1
-                except ValueError:
-                    pass
+            for q in _ALL_QUEUES:
+                pending_jobs = [j for j in q if j['status'] == 'pending']
+                for job in pending_jobs:
+                    try:
+                        q.remove(job)
+                        job['status'] = 'removed'
+                        removed_count += 1
+                    except ValueError:
+                        pass
         logger.info("Cleared %d pending jobs from queue", removed_count)
         return {'status': 'ok', 'removed_count': removed_count}
 
@@ -91,7 +106,8 @@ def register_routes(app):
                 'label': job['label'],
                 'status': job['status'],
                 'error': job['error'],
-                'comfy_prompt_id': job['comfy_prompt_id'],
+                'job_type': job.get('job_type', 'comfyui'),
+                'comfy_prompt_id': job.get('comfy_prompt_id'),
             }
             if job.get('result'):
                 resp['result'] = job['result']