Integrate git-repokit-common subtree to replace scripts-repo/

[djdarcy]

Summary

Replace the current scripts-repo/ directory with a proper git subtree from DazzleTools/git-repokit-common. This standardizes the development tooling (version sync, git hooks, pre-commit checks) and keeps it in sync across all DazzleTools/DazzleML projects.

Background

The project currently has scripts-repo/ with hand-maintained copies of:

• sync-versions.py -- version management
• update-version.sh -- git version string updater
• hooks/ -- git pre-commit hooks
• install-hooks.sh

These are the same tools that git-repokit-common provides in a standardized, maintained form. Other projects already use the subtree approach.

Proposed Work

1. Remove scripts-repo/ contents
2. Add git-repokit-common as a subtree (likely at scripts-repo/ or common/)
3. Adapt any project-specific customizations (e.g., the 4-file version bump pattern for plugin.json + marketplace.json)
4. Update sync-versions.py usage or configuration to handle the plugin-specific version files
5. Verify pre-commit hooks still work

Considerations

• The session-logger project has extra version files (.claude-plugin/plugin.json, .claude-plugin/marketplace.json) that standard repokit doesn't know about. May need to extend sync-versions.py config or add a project-level wrapper.
• Current scripts-repo/hooks/ pre-commit hook does version string updates -- need to verify this still works after subtree swap.
• The audit_codebase.py script in scripts-repo/ may be project-specific and not part of repokit-common.

Labels

enhancement