feat: complete web application — FastAPI backend + Vue 3 SPA frontend

- Full FastAPI backend with JWT auth, file management, processing pipeline,
  memory CRUD, barcode mappings, config management, cloud sync
- Vue 3 + Element Plus frontend with dashboard, task history, HTTP logs,
  memory editor, barcode editor, config editor, sync page
- HTTP request logging middleware with SQLite persistence
- Task history tracking with progress and retry support
- File metadata recording for upload/download operations
- WebAuth section in config.ini for bcrypt password storage
- Bug fix: logs.py count query returns tuple not dict

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

web/backend/routers/logs.py

@@ -49,7 +49,7 @@ def _count_http_logs(
         row = conn.execute(
             f"SELECT COUNT(*) as cnt FROM http_logs{where}", params
         ).fetchone()
-        return row["cnt"] if row else 0
+        return row[0] if row else 0
     finally:
         conn.close()