Modernize type hints in core/ module to Python 3.12+ syntax

[davidpoblador]

Summary

The core module uses legacy typing imports that can be replaced with Python 3.12+ built-in syntax.

Files to update

• src/blogtuner/core/post.py
• src/blogtuner/core/blog.py

Current imports

from typing import Any, Dict, List, Optional, Self

Proposed changes

Replace:

• Dict[str, Any] → dict[str, Any]
• List[str] → list[str]
• Optional[str] → str | None
• Keep Self from typing (still required)
• Keep Any from typing (still required)

Example change

# Before
from typing import Any, Dict, List, Optional, Self
DEFAULT_POST_METADATA: Dict[str, Any] = {}

# After
from typing import Any, Self
DEFAULT_POST_METADATA: dict[str, Any] = {}

Priority

Medium

Note

Self still requires import from typing module in Python 3.12+. The project already uses Self correctly.