Merge commit e95582a: PR #20 proactive chat, topic chips, low-info turn plan

- Merge staging workflow parent and resolve conflicts with English/i18n and WS pool
- Re-greeting: language-aware fallbacks and prompts; router passes user_language
- RealtimeSession: topic suggestion callbacks + TTS sync path preserved

Co-authored-by: Cursor <cursoragent@cursor.com>

app-expo/src/i18n/generated/resources.ts

@@ -106,6 +106,7 @@ interface Resources {
     tapToStartRecording: 'Tap to start recording';
     ttsThisTurn: 'Speak';
     ttsThisTurnAccessibility: 'When on, assistant replies synthesize speech before text appears.';
+    topicSuggestionsDismiss: 'Hide';
     timeDaysAgo_one: '{{count}} day ago';
     timeDaysAgo_other: '{{count}} days ago';
     timeHoursAgo_one: '{{count}} hour ago';

app-expo/src/i18n/locales/en/conversation.json

@@ -44,6 +44,7 @@
   "switchToVoice": "Switch to voice input",
   "tapToEndRecording": "Tap to end",
   "tapToStartRecording": "Tap to start recording",
+  "topicSuggestionsDismiss": "Hide",
   "viewAll": "View All",
   "voiceMessagePreview": "Voice message",
   "timeJustNow": "Just now",

app-expo/src/i18n/locales/zh/conversation.json

@@ -44,6 +44,7 @@
   "switchToVoice": "切换到语音输入",
   "tapToEndRecording": "点击结束",
   "tapToStartRecording": "点击开始录音",
+  "topicSuggestionsDismiss": "收起",
   "viewAll": "查看全部",
   "voiceMessagePreview": "语音消息",
   "timeJustNow": "刚刚",