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/services/lora_scanner.py

@@ -1,10 +1,12 @@
+# pyright: reportImportCycles=false
+# Lazy (function-local) imports still count as static edges in basedpyright's
+# reportImportCycles, so the ServiceRegistry singleton pattern necessarily forms
+# import cycles. Breaking them would require an architectural refactor.
 import logging
 from typing import List
 
 from ..utils.models import LoraMetadata
-from ..config import config
 from .model_scanner import ModelScanner
-from .model_hash_index import ModelHashIndex  # Changed from LoraHashIndex to ModelHashIndex
 import sys
 
 logger = logging.getLogger(__name__)
@@ -15,8 +17,10 @@ class LoraScanner(ModelScanner):
     def __init__(self):
         # Define supported file extensions
         file_extensions = {'.safetensors'}
-        
+
         # Initialize parent class with ModelHashIndex
+        from .model_hash_index import ModelHashIndex
+
         super().__init__(
             model_type="lora",
             model_class=LoraMetadata, 
@@ -26,11 +30,13 @@ class LoraScanner(ModelScanner):
     
     def get_model_roots(self) -> List[str]:
         """Get lora root directories (including extra paths)"""
+        from ..config import config
+
         roots: List[str] = []
         roots.extend(config.loras_roots or [])
         roots.extend(config.extra_loras_roots or [])
         # Remove duplicates while preserving order
-        seen: set = set()
+        seen: set[str] = set()
         unique_roots: List[str] = []
         for root in roots:
             if root and root not in seen:
@@ -68,8 +74,12 @@ class LoraScanner(ModelScanner):
         test_hash = next(iter(self._hash_index._hash_to_path.keys()))
         test_path = self._hash_index.get_path(test_hash)
         logger.debug(f"\nTest lookup by hash: {test_hash[:8]}... -> {test_path}")
+        if test_path is None:
+            return
         
         # Also test reverse lookup
         test_hash_result = self._hash_index.get_hash(test_path)
+        if test_hash_result is None:
+            return
         logger.debug(f"Test reverse lookup: {test_path} -> {test_hash_result[:8]}...\n\n")