Add --verbose flag to selfmodel.sh status

[VictorVVedtion]

Description

selfmodel.sh status shows a compact team health dashboard. Add a --verbose flag that shows additional detail:

• Full list of active sprint contracts with status
• Recent quality scores from quality.jsonl
• Worktree list with branch and status
• Hook intercept statistics from hook-intercepts.log

Files to modify

• scripts/selfmodel.sh — cmd_status() function

Acceptance criteria

• selfmodel.sh status works as before (no changes)
• selfmodel.sh status --verbose shows extended information
• selfmodel.sh status --help documents the new flag