watchdeck v0.1.0

Web monitoring pipeline built from QuartzUnit libraries.

Added

• Core monitoring pipeline: track URLs, detect changes, report results
• Safety guards integration:
  • agent-action-policy: block internal/private URL monitoring
  • agent-loop-guard: detect stale monitoring patterns
  • llm-degen-guard: flag garbage/CAPTCHA content
• CLI with 5 commands: add, remove, check, history, diff
• Optional screenshot capture via snapgrab on change detection
• Python async API (WatchDeck class)
• 28 tests passing