Sync Graph

Sync the knowledge graph with the current git state by diffing last_synced_commit against HEAD.

When to Use

• After git pull / git merge / git checkout to update graph with new code
• When you suspect the graph is stale (e.g., colleague pushed changes)
• After resolving merge conflicts
• Runs automatically on session start — manual invocation only needed mid-session

How It Works

1. Reads last_synced_commit from graph metadata
2. Gets current HEAD commit hash
3. If same: graph is up to date, no action needed
4. If different: runs git diff --name-status {last}..{HEAD} to find changed/added/deleted files
5. Parses changed/added files, removes deleted files from graph
6. Stores new HEAD as last_synced_commit