Recipe detail page, menu revamp, and UX improvements

- Add recipe detail page (recipe.html) with full ingredients and instructions
- Simplify menu tab: cards show name + description only, click through for full recipe
- Add description field to Recipe model with DB migration
- Add AI-generated descriptions to menu, swap, and import prompts
- Add single dish by description (POST /api/menus/current/recipes)
- Add grocery item delete without pantry add (DELETE /api/grocery/{id}/items)
- Persist grocery checked state server-side (PATCH /api/grocery/{id}/check-item)
- Hash-based tab routing — refresh stays on current tab
- Logo branding in header and favicon
- Dark theme fixes: URL/text inputs, amber accent, muted danger/warning colors
- Markdown rendering in chat (bold, italic, code blocks, lists, headers)
- Fix instruction step splitting for inline-numbered steps (1. 2. 3.)
- Import recipe from URL with JSON-LD structured data + AI fallback

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

1 files changed, 22 insertions, 0 deletions

diff --git a/routers/grocery.py b/routers/grocery.py
index cbc66bb..a74776d 100644
--- a/routers/grocery.py
+++ b/routers/grocery.py
@@ -211,6 +211,28 @@ async def mark_purchased(id: int, db: Session = Depends(get_db)):
     return GroceryListRead.from_orm(grocery_list)
 
 
+@router.delete("/{id}/items")
+async def delete_grocery_item(id: int, request: dict = Body(...), db: Session = Depends(get_db)):
+    """Remove a single item from a grocery list by name."""
+    grocery_list = db.query(GroceryList).filter(GroceryList.id == id).first()
+    if not grocery_list:
+        raise HTTPException(status_code=404, detail="Grocery list not found")
+
+    item_name = request.get("name")
+    if not item_name:
+        raise HTTPException(status_code=400, detail="Item name is required")
+
+    try:
+        items = json.loads(grocery_list.items)
+    except json.JSONDecodeError:
+        items = []
+
+    items = [i for i in items if not (isinstance(i, dict) and i.get("name") == item_name)]
+    grocery_list.items = json.dumps(items)
+    db.commit()
+    return {"status": "ok"}
+
+
 @ai_router.post("/suggest-recipe")
 async def suggest_recipe_endpoint(db: Session = Depends(get_db)):
     """Suggest a recipe based on current pantry."""