Add recipe suggestions, chat tab, and major workflow improvements

- Replace 7-day grid menu with browsable recipe suggestion cards (swap, remove, make this)
- Add Chat tab: conversational AI with full pantry/menu/grocery context
- Grocery list works without a menu (pantry-only mode)
- Individual grocery checkboxes auto-add items to pantry
- Swap modal with optional preference input
- User notes textarea on menu and grocery generation
- Clear button for menu and grocery list
- LLM notes/summary displayed after generation, persisted to DB
- Favicon linked in HTML
- Category dropdown styled for dark theme
- System prompt configurable via SYSTEM_PROMPT in .env
- Fix startup error (ollama_timeout default), DB migration for menu_plans.notes
- Simplify: batch N+1 queries, extract _current_monday(), merge chat sync fns,
  asyncio.get_running_loop(), fix currentGroceryId bug, cap chat history

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

1 files changed, 1 insertions, 0 deletions

diff --git a/schemas.py b/schemas.py
index 0d16826..fe7bee2 100644
--- a/schemas.py
+++ b/schemas.py
@@ -134,6 +134,7 @@ class MenuPlanRead(BaseModel):
     plan: str
     generated_at: datetime
     model_used: Optional[str]
+    notes: Optional[str] = None
 
     model_config = ConfigDict(from_attributes=True)