fix: Remove types-all from mypy pre-commit hook

Replace types-all with specific type stubs (types-PyYAML, numpy) to avoid
dependency resolution errors. The types-all meta-package has issues with
types-pkg-resources which no longer exists.

Since we use --ignore-missing-imports, we only need type stubs for core
dependencies that we actually use in type annotations.

Author: claude

.pre-commit-config.yaml

@@ -44,7 +44,7 @@ repos:
     hooks:
       - id: mypy
         language_version: python3
-        additional_dependencies: [types-all]
+        additional_dependencies: [types-PyYAML, numpy]
         args: [--ignore-missing-imports, --check-untyped-defs]
         exclude: ^(tests/|legacy/|.*\.ipynb)