Migrate from Poetry and pyenv to uv

src/core/transforms.py

@@ -4,8 +4,8 @@ Applied when building a folder name from a tag value — the tag keeps its exact
 value (e.g. rating 87 → tag "Hodnocení/87"), while the folder groups it
 (→ "…/80–89 %"). Config-driven and extensible via ``TAG_TRANSFORMS``.
 """
+
 import re
-from typing import Optional
 
 
 def rating_band(rating: int) -> str:
@@ -32,10 +32,10 @@ TAG_TRANSFORMS = {
 }
 
 
-def apply_transform(value: str, transform: Optional[str]) -> str:
+def apply_transform(value: str, transform: str | None) -> str:
     """Apply a named tag-schema transform to a value, returning a string."""
     fn = TAG_TRANSFORMS.get(transform, str)
     try:
         return str(fn(value))
-    except (ValueError, TypeError, AttributeError):
+    except ValueError, TypeError, AttributeError:
         return str(value)