chore: bump version to 0.33.2

Fixes:
- P0 priority preserved - omitempty removed from Priority field (GH#671)
- nil pointer check in markdown parsing (GH#674)

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

cmd/bd/templates/hooks/pre-commit

@@ -1,6 +1,6 @@
 #!/bin/sh
 # bd-shim v1
-# bd-hooks-version: 0.33.1
+# bd-hooks-version: 0.33.2
 #
 # bd (beads) pre-commit hook - thin shim
 #