chore(deps): regenerate uv.lock with exclude-newer cooldown recorded

uv records the 3-day cooldown as exclude-newer-span = "P3D" in the
lock [options] block for reproducibility. Also syncs package version
from pyproject.toml (0.4.2 -> 0.4.3, was stale in the prior lock).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: toshke

pyproject.toml

@@ -21,7 +21,7 @@ dev = [
 ]
 
 [tool.uv]
-exclude-newer = "3 days"
+exclude-newer = "7 days"
 
 [build-system]
 requires = ["hatchling"]