Add bulk import for local git repositories

[clyons]

Summary

Add a bulk import path for local git repositories.

Context

This came out of setting up a fresh VibeFocus instance against an existing local portfolio. The app already has the core fields needed for this (local_path, github_url, git stats, commit logs, buckets/states), but there was no fast path from “I have a folder full of repos” to “VibeFocus has my portfolio.”

A small local importer proved the workflow: it scanned 14 repos, created project records, inferred GitHub URLs from remotes, and synced 1,440 commits. Re-running it was idempotent, which suggests this could be productized as a general bulk-import feature.

Proposed Behavior

• Scan a configurable directory for local git repositories.
• Create or update projects idempotently.
• Infer github_url from the origin remote where possible.
• Store local_path.
• Sync lightweight local git stats and recent commit history.
• Work without an Anthropic API key or GitHub API auth.

Acceptance Criteria

• make import-projects PROJECTS_DIR=/path/to/repos imports repos safely.
• Re-running the command does not duplicate projects or commits.
• Existing projects are updated when matched by local_path or github_url.
• Imported projects include local path, GitHub URL when detectable, branch, last commit, dirty status, and recent commit history.