Restore the hatchling <1.32 cap

Current twine accepts Metadata-Version 2.5 locally, but the release
pipeline's build-and-inspect action vendors an older twine that rejects
it — the v0.4.0 tag build failed on exactly that. Cap stays until the
action's toolchain updates.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NoLtnms93KQL7Jsp9GrZZo

Author: jman4162

pyproject.toml

@@ -1,7 +1,8 @@
 [build-system]
-# hatchling 1.32 emits Metadata-Version 2.5; current twine passes it
-# (checked 2026-08-21), so the earlier <1.32 cap is lifted.
-requires = ["hatchling>=1.27,<2", "hatch-vcs>=0.4"]
+# hatchling 1.32 emits Metadata-Version 2.5. Current twine accepts it, but
+# the release pipeline's build-and-inspect action vendors an older twine
+# that rejects it (seen failing 2026-08-21); keep the cap until it updates.
+requires = ["hatchling>=1.27,<1.32", "hatch-vcs>=0.4"]
 build-backend = "hatchling.build"
 
 [project]