Improve morning report collectors and add section toggling

- Add is_section_enabled() to support per-section enable/disable in config
- Update Python path from 3.13 to 3.14 for gmail venv
- Disable tasks section by default (enabled: false in config)
- Apply code formatting improvements (black/ruff style)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

skills/morning-report/config.json

@@ -25,6 +25,7 @@
     "show_tomorrow": true
   },
   "tasks": {
+    "enabled": false,
     "max_display": 5,
     "show_due_dates": true
   },