Fix CI linting and spelling issues

- Add missing type annotations and imports
- Fix datetime import references
- Add technical terms to spellcheck wordlist
- Add compatibility method for sync generation

Author: abrookins

.github/wordlist.txt

@@ -74,4 +74,13 @@ virtualenv
 datetime
 Datetime
 reindex
-schemas
+schemas
+Pre
+DataMigrationError
+ConnectionError
+TimeoutError
+ValidationError
+RTO
+benchmarked
+SSD
+Benchmarking

aredis_om/model/migrations/data_migrator.py

@@ -12,9 +12,9 @@
 import importlib.util
 import os
 import time
-from datetime import datetime
+from datetime import datetime, date
 from pathlib import Path
-from typing import Any, Dict, List, Optional, Set
+from typing import Any, Dict, List, Optional, Set, Callable
 
 try:
     import psutil
@@ -431,7 +431,7 @@ async def run_migrations_with_monitoring(
         dry_run: bool = False,
         limit: Optional[int] = None,
         verbose: bool = False,
-        progress_callback: Optional[callable] = None,
+        progress_callback: Optional[Callable] = None,
     ) -> Dict[str, Any]:
         """
         Run pending migrations with enhanced performance monitoring.
@@ -588,7 +588,7 @@ async def verify_data_integrity(self, verbose: bool = False) -> Dict[str, Any]:
                 datetime_fields = []
                 for field_name, field_info in model_class.model_fields.items():
                     field_type = getattr(field_info, "annotation", None)
-                    if field_type in (datetime.datetime, datetime.date):
+                    if field_type in (datetime, date):
                         datetime_fields.append(field_name)
 
                 if not datetime_fields:
@@ -766,7 +766,7 @@ async def get_migration_statistics(self) -> Dict[str, Any]:
                 datetime_fields = []
                 for field_name, field_info in model_class.model_fields.items():
                     field_type = getattr(field_info, "annotation", None)
-                    if field_type in (datetime.datetime, datetime.date):
+                    if field_type in (datetime, date):
                         datetime_fields.append(field_name)
 
                 if datetime_fields:

aredis_om/model/migrations/datetime_migration.py

@@ -135,6 +135,11 @@ def _safe_convert_datetime_value(
         except Exception as e:
             self.stats.add_conversion_error(key, field_name, value, e)
 
+    async def _convert_datetime_value(self, value: Any) -> Any:
+        """Legacy method for compatibility - delegates to safe conversion."""
+        converted, _ = self._safe_convert_datetime_value("unknown", "unknown", value)
+        return converted
+
             if self.failure_mode == ConversionFailureMode.FAIL:
                 raise DataMigrationError(
                     f"Failed to convert datetime field '{field_name}' in key '{key}': {e}"
@@ -252,9 +257,9 @@ def __init__(self, redis_client, migration_id: str):
     async def save_progress(
         self,
         processed_keys: Set[str],
-        current_model: str = None,
+        current_model: Optional[str] = None,
         total_keys: int = 0,
-        stats: Dict[str, Any] = None,
+        stats: Optional[Dict[str, Any]] = None,
     ):
         """Save current migration progress."""
         state_data = {