fix mypy errors from types-peewee 4.0 (#24323)

types-peewee 4.0 types model fields precisely, so 17 `type: ignore` comments and 2 `cast(str, ...)` calls are no longer needed. Its stubs type `.namedtuples()` and `.dicts()` queries as returning model instances, so the review cleanup reads namedtuple fields by name and the storage usage query casts its dict rows. `start_time` is declared `DateTimeField` but stores unix timestamps, so two reads cast it like `debug_replay.py` already does. `Export` gets an annotation for the `export_case_id` attribute peewee adds at runtime.

docker/main/requirements-dev.txt

@@ -1,4 +1,4 @@
 ruff == 0.15.20
 
 # types
-types-peewee == 3.17.*
+types-peewee == 4.0.*