feat(ui): align global button thickness with main page

feat(ui): standardize form controls and migrate key selects

feat(i18n): localize system UI and move Ctrl+K to overflow

feat(ui): add favicon metadata icons

feat(ui): add visible Command Palette trigger

fix(hotkeys): remove Ctrl+K conflict with sidebar

fix(voice): add language picker for speech recognition

refactor(ui): migrate remaining pages to shadcn controls

refactor(ui): apply shadcn to legacy pages and vision

feat(features): add full functionality index page

fix(i18n): wire locale behavior and restyle language picker

fix: add HF Spaces README config

Wave 15: Language learn, code snippets, vision AI, music playlist/lyrics - 100+ routes shipped

feat(wave-14): todo prioritizer, markdown notes, fitness+mood tracker, recipe finder+nutrition, knowledge base, news feed (10 features)

feat(wave-13): hub w12 update, cmd palette mount, auto-title/memory hooks, PDF-RAG, audio transcribe, calendar scheduler (13 features)

feat(wave-12): legal, medical, social, finance, shopping, homework, pitch, cover-letter (8 AI pages)

feat(wave-11): command palette, dashboard, code-review, db, slides, contract, story

feat(wave10): 8 AI lifestyle/professional pages (meeting-notes/interview/email/recipe/travel/study/music/names)

feat(wave9): 8 AI productivity pages (translate/tone/url-summary/writing/flashcards/mindmap-ai/resume) + hub update

feat(wave8): 8 devtools pages (text/encode/hash/random/sql/image/qr/fun)

feat(wave7): hub + devtools (json/regex/colors/time/md/clip)

feat(wave6): voice TTS, share comments, tags+favorites, export+shortcuts

feat(wave5): mind-map, templates, personas marketplace, meeting mode, pinned, notes, link-preview

feat(wave4): 8 features — slash cmds, search, qr-share, /help, image gen, code sandbox, debate, cost tracker

feat: message branching + team workspace (Gist-based collab)

feat: 10+ features — voice/dragdrop/shortcuts, Ollama+RAG citations, workflows+scheduled, share password+TTL, auto-memory, export-md

feat(header): wire LocaleSwitcher (vi/en/ja)

feat: doc editor + offline mode + stats trio + i18n framework

feat(prompt): explicit tool-use rules for news/URL/YouTube/SQL queries

feat(tools): 3 new tools - Jina Reader URL fetch + YouTube transcript + SQL/CSV analysis

feat(webSearch): multi-provider chain (Brave/Tavily/Serper/Jina) + free fallback

feat(chat): persist+restore active session id across reloads

fix(mistral): use official @ai-sdk/mistral provider for tool calling

fix(model-picker): pass correct userKey for openrouter/cerebras/mistral

fix(tools): currentTime accepts timezone+locale, fixes Gemini null-args bug

fix(ui): make 'Chi tiết kỹ thuật' + AB error pane scrollable on mobile

feat(providers): add OpenRouter + Cerebras + Mistral free providers

fix(rate-limits): correct Groq + GitHub Models entries against official docs

fix(rate-limits): Gemma is unlimited on Google free tier (RPM/TPM only)

feat(generateImage): auto-enhance short/non-English prompts via Groq

fix(google): disable thinking when tools enabled to avoid thought_signature error

fix: drop generateImage pre-warm + add loading skeleton

fix: render generated images + fix tool-call layout overflow on mobile

feat: real provider rate-limit data via response headers

fix(generateImage): pre-warm Pollinations cache + better instructions

fix(model-store): replace state ref on each notify so React re-renders

fix(model-picker): swap DropdownMenuItem for plain button on scan row

fix(model-picker): spinner + locked button while scanning

feat(composer): default AI toggles ON + toast feedback on click

fix(model-picker): show used/total with red when exhausted