Implement supermarket walking path (Laufwege & Regale), presets, and 1-tap shelf reassignment

app/main.py

@@ -59,7 +59,8 @@ from .database import (
     reorder_shopping_categories,
     reset_default_shopping_categories,
     update_shopping_item_category,
-    update_shopping_item
+    update_shopping_item,
+    SHELF_TYPES
 )
 
 BASE_DIR = os.path.dirname(os.path.abspath(__file__))
@@ -218,11 +219,13 @@ class ShoppingBulkCreate(BaseModel):
 class ShoppingCategoryCreate(BaseModel):
     name: str
     icon: Optional[str] = "🛒"
+    shelf_type: Optional[str] = "other"
     sort_order: Optional[int] = None
 
 class ShoppingCategoryUpdate(BaseModel):
     name: str
     icon: Optional[str] = "🛒"
+    shelf_type: Optional[str] = "other"
     sort_order: Optional[int] = None
 
 class ShoppingReorderRequest(BaseModel):
@@ -360,6 +363,7 @@ async def shopping_list_view(request: Request):
 
     items_json = json.dumps(items, default=json_serial)
     categories_json = json.dumps(categories, default=json_serial)
+    shelf_types_json = json.dumps(SHELF_TYPES, default=json_serial)
 
     return templates.TemplateResponse(
         request=request,
@@ -367,8 +371,10 @@ async def shopping_list_view(request: Request):
         context={
             "items": items,
             "categories": categories,
+            "shelf_types": SHELF_TYPES,
             "items_json": items_json,
             "categories_json": categories_json,
+            "shelf_types_json": shelf_types_json,
             "current_year": iso_year,
             "current_week": iso_week
         }
@@ -1154,7 +1160,7 @@ def api_get_shopping_categories():
 @app.post("/api/shopping-categories")
 async def api_add_shopping_category(payload: ShoppingCategoryCreate):
     try:
-        cat = add_shopping_category(payload.name, payload.icon or "🛒", payload.sort_order)
+        cat = add_shopping_category(payload.name, payload.icon or "🛒", payload.shelf_type or "other", payload.sort_order)
         await shopping_ws_manager.broadcast({
             "action": "categories_updated",
             "categories": get_shopping_categories(),
@@ -1167,7 +1173,7 @@ async def api_add_shopping_category(payload: ShoppingCategoryCreate):
 
 @app.put("/api/shopping-categories/{cat_id}")
 async def api_update_shopping_category(cat_id: int, payload: ShoppingCategoryUpdate):
-    cat = update_shopping_category(cat_id, payload.name, payload.icon or "🛒", payload.sort_order)
+    cat = update_shopping_category(cat_id, payload.name, payload.icon or "🛒", payload.shelf_type or "other", payload.sort_order)
     if not cat:
         raise HTTPException(status_code=404, detail="Bereich nicht gefunden.")
     await shopping_ws_manager.broadcast({
@@ -1202,8 +1208,8 @@ async def api_reorder_shopping_categories(payload: ShoppingReorderRequest):
 
 
 @app.post("/api/shopping-categories/reset-defaults")
-async def api_reset_default_shopping_categories():
-    cats = reset_default_shopping_categories()
+async def api_reset_default_shopping_categories(preset: str = Query("standard")):
+    cats = reset_default_shopping_categories(preset=preset)
     await shopping_ws_manager.broadcast({
         "action": "categories_updated",
         "categories": cats,