chore: Bump version to 0.26.1

Updated all component versions:
- bd CLI: 0.26.0 → 0.26.1
- Plugin: 0.26.0 → 0.26.1
- MCP server: 0.26.0 → 0.26.1
- npm package: 0.26.0 → 0.26.1
- Hook templates: 0.26.0 → 0.26.1

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

cmd/bd/templates/hooks/pre-push

@@ -1,5 +1,5 @@
 #!/bin/sh
-# bd-hooks-version: 0.26.0
+# bd-hooks-version: 0.26.1
 #
 # bd (beads) pre-push hook
 #