v4: news cards, click-to-summarize, news hook, hang fix, summarize_news tool

Restore src/app.js to commit 816c981d state

Feat: 10 news cards from 17 RSS, click-to-summarize, news hook in greeting, fix avatar hang

Add 5 hot news cards from 10 RSS sources under avatar responses, TTS never reads news

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fix: add intro prefix, source link popup, TTS Vietnamese number words

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Restore: src/app.js to commit 186d7cb (stable logic, newsHook support)

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Add news source link below first greeting in chat

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Fix: greeting có dấu TV, bỏ intro, link không đọc, bỏ dấu . cuối URL, fix text chat response

Fix: addChatMessage/showSubtitles dùng innerHTML + linkify, link clickable mở popup

Fix: Model writes numbers as Vietnamese WORDS (TTS reads correctly), viNumberFix converts to digits for display

Fix: Use string concat instead of template literals to avoid corruption, strict greeting template, numbers as digits

Fix: Strict greeting template + numbers as digits

Fix: Restore stable logic, keep newsHook {title,link} support

Fix: Add error handling, simplify instructions to prevent stuck connecting

Fix: Handle null/undefined newsHook in effectiveInstructions, prevent stuck connecting

Fix: Handle null/undefined newsHook in effectiveInstructions, prevent stuck connecting

Update src/app.js: Display numbers as digits, add news source links, add intro 'Tôi tên là Vương đến V.AI STUDIO'

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Fix news + TTS: getHotNewsGreeting dùng /api/news/hot, pre-fetch trong boot, greeting sau session.updated

Fix: getHotNewsGreeting thêm Wikipedia VN fallback để luôn có tiêu đề cụ thể

Fix: TTS+lip-sync cho auto-greeting, fetch hot news VN cụ thể

Fix TTS+lip-sync: _waitForSession để connect() chờ session.created trước khi resolve

Fix treo connecting: auto-join cho text mode, connectSession với error handling, retry join-expired

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Fix avatar treo: loại bỏ withSearchContext, thêm queue tin nhắn, session re-entry guard

Auto-greeting: Vương tự chào với tin nóng Việt Nam sau khi load avatar

Restore app.js to commit 14581f08 (Vương greeting, search tools, World Cup, text chat UI)

Fix: default avatar vuong.glb, strong instructions, remove requestResponse from runTool

Fix: final instructions + remove setTimeout from runTool + 2s fallback in sendTextMessage

Fix: add 3s fallback requestResponse after tool output, simplify sendTextMessage

Fix: remove requestResponse from runTool, add retry logic to sendTextMessage

Fix: re-add requestResponse in runTool with delay, stronger tool instructions

Fix: remove requestResponse from runTool, stronger instructions, ensure sendTextMessage flow