refactor: improve function naming for clarity and consistency

Rename functions to use clearer verb-based names:
- pick_best_live_path → select_best_live_path
- escape_like_prefix → escape_sql_like_string
- list_tree → list_files_recursively
- check_asset_file_fast → verify_asset_file_unchanged
- _seed_from_paths_batch → _batch_insert_assets_from_paths
- reconcile_cache_states_for_root → sync_cache_states_with_filesystem
- touch_asset_info_by_id → update_asset_info_access_time
- replace_asset_info_metadata_projection → set_asset_info_metadata
- expand_metadata_to_rows → convert_metadata_to_rows
- _rows_per_stmt → _calculate_rows_per_statement
- ensure_within_base → validate_path_within_base
- _cleanup_temp → _delete_temp_file_if_exists
- validate_hash_format → normalize_and_validate_hash
- get_relative_to_root_category_path_of_asset → get_asset_category_and_relative_path

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/assets/database/queries/__init__.py

@@ -17,8 +17,8 @@ from app.assets.database.queries.asset_info import (
     list_asset_infos_page,
     fetch_asset_info_asset_and_tags,
     fetch_asset_info_and_asset,
-    touch_asset_info_by_id,
-    replace_asset_info_metadata_projection,
+    update_asset_info_access_time,
+    set_asset_info_metadata,
     delete_asset_info_by_id,
     set_asset_info_preview,
     bulk_insert_asset_infos_ignore_conflicts,
@@ -67,8 +67,8 @@ __all__ = [
     "list_asset_infos_page",
     "fetch_asset_info_asset_and_tags",
     "fetch_asset_info_and_asset",
-    "touch_asset_info_by_id",
-    "replace_asset_info_metadata_projection",
+    "update_asset_info_access_time",
+    "set_asset_info_metadata",
     "delete_asset_info_by_id",
     "set_asset_info_preview",
     "bulk_insert_asset_infos_ignore_conflicts",