Implement 'git-mind status' command #39
Description
Feature
Show git-mind status including edges, cache state, and attribution summary.
Requirements
- Show edge count by type
- Show cache status (up-to-date/stale)
- Show attribution breakdown (human vs AI)
- Show recent activity
- Support porcelain output
Example Output
Git-Mind Status for branch: main
Edges: 1,234 total
DEPENDS_ON: 567
IMPLEMENTS: 345
REFERENCES: 234
AUGMENTS: 88
Attribution:
Human: 1,100 (89%)
AI: 134 (11%)
Cache: Up-to-date (rebuilt 5 minutes ago)
Recent Activity:
- 3 edges added by claude@anthropic (2 hours ago)
- 1 edge added by human (3 hours ago)
- Cache rebuilt (5 hours ago)
Acceptance Criteria
- Shows accurate edge counts
- Cache status is correct
- Attribution breakdown accurate
- Recent activity shows last 5 items
- Porcelain mode works