Extend HookTriggerType from 5 to 12 official events (Notification, SubagentStart,
SubagentStop, PreCompact, SessionEnd, PostToolUseFailure, PermissionRequest).
Add templates: stop-notify, auto-format-on-write, auto-lint-on-write,
block-sensitive-files, git-auto-stage, post-edit-index, session-end-summary
across notification/automation/indexing categories. Fix install pipeline to
use correct nested settings.json format with _templateId metadata for precise
detection. Redesign templates UI as responsive card grid with per-template icons.
- Add Play icon import for SessionStart trigger type
- Add SessionStart case to getEventIcon function
- Add SessionStart case to getEventColor function with purple color
- Add default cases to both functions to prevent undefined returns
Fixes runtime error: 'Element type is invalid: expected a string or class/function but got: undefined' in EventGroup component
- Added A2UITypes for defining question structures and answers.
- Created A2UIWebSocketHandler for managing WebSocket connections and message handling.
- Developed ask-question tool for interactive user questions via A2UI.
- Introduced platformUtils for platform detection and shell command handling.
- Centralized TypeScript types in index.ts for better organization.
- Implemented compatibility checks for hook templates based on platform requirements.
