Overview

Port Pinchtab's Bridge struct — the central coordinator holding Chrome connection, tab registry, and snapshot cache.

Tasks

• Bridge struct with:
  • CDP client reference
  • tabs: AutoHashMap([]const u8, *TabEntry) — thread-safe tab registry
  • snapshots: AutoHashMap([]const u8, *RefCache) — snapshot cache per tab
  • RwLock for concurrent access
• TabEntry struct: target ID, CDP context, created timestamp
• TabContext(tabId) — resolve existing or create new tab context
• CreateTab(url) — open new tab via CDP Target.createTarget
• CloseTab(tabId) — close tab, cancel context, remove from registry
• CleanStaleTabs() — background thread, runs every 30s, removes tabs no longer in Chrome

Reference

• Pinchtab bridge.go: Bridge struct with sync.RWMutex, tabs map[string]*TabEntry

Acceptance Criteria

• Thread-safe tab CRUD operations
• Stale tab cleanup works
• Snapshot cache set/get/delete per tab