Fix tasks UI, WebSocket progress, memory monitoring, and app generator
Tasks UI fixes:
- Fix task list to query auto_tasks table instead of tasks table
- Fix task detail endpoint to use UUID binding for auto_tasks query
- Add proper filter handling: complete, active, awaiting, paused, blocked
- Add TaskStats fields: awaiting, paused, blocked, time_saved
- Add /api/tasks/time-saved endpoint
- Add count-all to stats HTML response
App generator improvements:
- Add AgentActivity struct for detailed terminal-style progress
- Add emit_activity method for rich progress events
- Add detailed logging for LLM calls with timing
- Track files_written, tables_synced, bytes_generated
Memory and performance:
- Add memory_monitor module for tracking RSS and thread activity
- Skip 0-byte files in drive monitor and document processor
- Change DRIVE_MONITOR checking logs from info to trace
- Remove unused profile_section macro
WebSocket progress:
- Ensure TaskProgressEvent includes activity field
- Add with_activity builder method