fix(types): resolve pre-existing basedpyright errors in py/ and standalone.py

Fix ~950 basedpyright errors across the backend:
- Convert ineffective # type: ignore comments to # pyright: ignore[rule]
- Add missing generic type arguments (Dict[str, Any], list[Any], ...)
- Annotate dynamic dict literals and runtime-initialized attributes
- Widen CivitAI provider tuple signatures in recipe parsers
- Remove dead LoraRoutes handlers calling nonexistent LoraService methods
- Suppress unavoidable ServiceRegistry import cycles (basedpyright counts
  function-local imports as cycle edges)

py/nodes/lora_stack_combiner.py

@@ -73,7 +73,7 @@ class LoraStackCombinerLM:
 
         stack = inspect.stack()
         if len(stack) > 2 and stack[2].function == "get_input_info":
-            optional_inputs = _LoraStackOptionalInputs(optional_inputs)  # type: ignore[assignment]
+            optional_inputs = _LoraStackOptionalInputs(optional_inputs)  # pyright: ignore[reportAssignmentType]
 
         return {
             "required": {},