feat: kanban status buttons, task back-nav, RSS UI, weather search, briefing fixes

Project view:
- Add inline status advance buttons on kanban task cards (todo→in_progress,
  in_progress→done); buttons reveal on hover, stop link navigation

Task viewer:
- Back button navigates to task's project instead of /tasks when project_id set
- Esc key navigates to project (or /tasks); blurs focused element first

Quick capture:
- Use user's configured model instead of hardcoded Config.OLLAMA_MODEL
- Remove create_project from classifier prompt (tool not offered, caused
  task-shaped inputs to silently fall through to note fallback)

Briefing scheduler:
- Fix get_event_loop() → get_running_loop() so background thread uses the
  correct hypercorn event loop (jobs were scheduling but never executing)
- Suppress bare greeting when both LLM synthesis lanes return empty

RSS feed UI (SettingsView):
- Show last-fetched age, category badge, and feed URL per row
- Category input field when adding a feed
- Refresh all button: fetches latest items, reloads list, toasts with count
- Enter key submits add-feed form; better empty-state hint with example feeds

Weather tool:
- Accept any city/region name in addition to 'home'/'work'/'all'
- Geocodes via Nominatim + fetches live from Open-Meteo for arbitrary queries

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

src/fabledassistant/services/intent.py

@@ -132,7 +132,6 @@ Rules:
 - create_event: appointments, meetings, scheduled occurrences with a date/time ("dentist Friday 2pm", "team meeting next Tuesday")
 - update_note: updating, editing, appending to an existing note or task ("add to my shopping list: eggs", "mark buy milk done", "append to my meeting notes", "update my project note")
 - research_topic: user wants a comprehensive research note from web sources ("research X", "look up X and make a note", "find everything about X", "compile a note on X")
-- create_project: user wants to create a project, initiative, or campaign ("new project X", "start a project called Y", "create a project for Z")
 - create_note: everything else — ideas, observations, links, excerpts, longer text
 - For create_task / create_event: extract a concise title; put any extra detail in "body"
 - For create_note: use a short descriptive title (≤60 chars); put the FULL original text as "body"