Fix KeyError on keyword/tag objects without 'name' field

Tandoor recipe list API may return keyword objects without a 'name'
key, causing KeyError('name'). Use .get() with filtering across all
tag/keyword list comprehensions in both Mealie and Tandoor clients.

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

app/mealie.py

@@ -126,7 +126,7 @@ class MealieClient:
                 "id": item["slug"],
                 "name": item.get("name", ""),
                 "image": image_url,
-                "tags": [t["name"] for t in item.get("tags", [])],
+                "tags": [t.get("name", "") for t in item.get("tags", []) if t.get("name")],
                 "url": f"{self.base_url}/g/home/r/{item['slug']}",
             })
         return {
@@ -177,7 +177,7 @@ class MealieClient:
                 instructions.append(text)
 
         # Parse tags
-        tags = [t["name"] for t in data.get("tags", [])]
+        tags = [t.get("name", "") for t in data.get("tags", []) if t.get("name")]
 
         # Image URL
         image_url = ""