feat(recipes): explain empty LoRA lists with collapsible "Why no LoRAs?" panel

Record import provenance on every recipe: a new import_info block
(channel, machine-readable no-LoRA reason, diagnostic details) built at
import time across all channels (batch import, single URL, local file,
upload, widget save, re-imports) and persisted in the recipe JSON plus
the SQLite persistent cache (new import_info_json column with ALTER
TABLE migration).

The recipe modal renders the empty LoRA list with a collapsed details
panel showing the import method, the reason (CivitAI API returned no
LoRA resource data, API meta missing, no embedded metadata, ComfyUI
workflow metadata, video, unparsable format), and recorded diagnostics.
Legacy recipes without import_info fall back to heuristics labeled as
inferred. Genuine no-LoRA generations show no panel.

CivitAI images are always classified by API meta shape: the onsite
generator writes A1111-style EXIF without LoRA references, so parsed
EXIF cannot prove "no LoRAs used".

Adds recipes.resources.noLoras* i18n keys (all 10 locales) plus
frontend vitest and backend pytest coverage.

py/services/persistent_recipe_cache.py

@@ -59,6 +59,7 @@ class PersistentRecipeCache:
         "gen_params_json",
         "tags_json",
         "has_workflow",
+        "import_info_json",
     )
     _instances: Dict[str, "PersistentRecipeCache"] = {}
     _instance_lock = threading.Lock()
@@ -447,7 +448,8 @@ class PersistentRecipeCache:
                             checkpoint_json TEXT,
                             gen_params_json TEXT,
                             tags_json TEXT,
-                            has_workflow INTEGER DEFAULT 0
+                            has_workflow INTEGER DEFAULT 0,
+                            import_info_json TEXT
                         );
 
                         CREATE INDEX IF NOT EXISTS idx_recipes_json_path ON recipes(json_path);
@@ -473,6 +475,13 @@ class PersistentRecipeCache:
                         )
                     except Exception:
                         pass  # column already exists
+                    # Migration: add import_info_json column to existing databases
+                    try:
+                        conn.execute(
+                            "ALTER TABLE recipes ADD COLUMN import_info_json TEXT"
+                        )
+                    except Exception:
+                        pass  # column already exists
                     conn.commit()
                 self._schema_initialized = True
             except Exception as exc:
@@ -504,6 +513,9 @@ class PersistentRecipeCache:
         tags = recipe.get("tags")
         tags_json = json.dumps(tags) if tags else None
 
+        import_info = recipe.get("import_info")
+        import_info_json = json.dumps(import_info) if import_info else None
+
         # Get file stats if json_path exists
         file_mtime = 0.0
         file_size = 0
@@ -536,6 +548,7 @@ class PersistentRecipeCache:
             gen_params_json,
             tags_json,
             1 if recipe.get("has_workflow") else 0,
+            import_info_json,
         )
 
     def _row_to_recipe(self, row: sqlite3.Row) -> Dict[str, Any]:
@@ -568,6 +581,13 @@ class PersistentRecipeCache:
             except json.JSONDecodeError:
                 pass
 
+        import_info = None
+        if row["import_info_json"]:
+            try:
+                import_info = json.loads(row["import_info_json"])
+            except json.JSONDecodeError:
+                pass
+
         recipe = {
             "id": row["recipe_id"],
             "file_path": row["file_path"] or "",
@@ -592,6 +612,9 @@ class PersistentRecipeCache:
         if checkpoint:
             recipe["checkpoint"] = checkpoint
 
+        if import_info:
+            recipe["import_info"] = import_info
+
         return recipe