Problem

When users load a workflow shared by others or when the Claude Code CLI session expires, the AI editing session cannot be continued. However, users were not informed about this situation, leading to confusion about why AI might not remember previous context.

Current Behavior

1. User loads a shared workflow or session expires
2. ❌ AI silently starts a new session without notification
3. ❌ User doesn't understand why AI lost context

Expected Behavior

1. User loads a shared workflow or session expires
2. ✅ Warning dialog explains the situation clearly
3. ✅ User understands AI can only reference conversation history

Solution

Add session reconnection detection and warning dialog to inform users when a new conversation session is started.

Changes

Session Reconnection Detection

• Added error pattern matching in refinement-service.ts for:
  • 'no conversation found with session id'
  • 'not a valid uuid'

Warning Dialog (AlertDialog Component)

• New AlertDialog.tsx component for simple OK-only dialogs
• Shows warning when session status changes to 'reconnected'
• Clear explanation of what happened and what context may be lost

i18n Support

• Added translations for 5 languages (en, ja, ko, zh-CN, zh-TW)
• Warning dialog title: "AI Editing Session Reconnected"
• Message explains reasons (shared workflow, session expiration) and impact

Removed SessionStatusBadge UI

• Replaced persistent badge with one-time warning dialog
• Cleaner UX - users only see notification when relevant

Impact

• Improved UX for session reconnection scenarios
• No breaking changes
• Users are now informed when AI context may be lost

Testing

• Manual E2E testing completed
• Build verification passed
• Code quality checks passed (format, lint, check)