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[Copilot]

Pull request overview

This PR updates the repo’s developer tooling/formatting baseline and introduces new chat UX plumbing (virtualized chat list + improved markdown rendering), while also tightening /api/chat provider selection and error/abort behavior.

Changes:

• Add repo-wide Prettier config + Husky/commitlint/commitizen + lint-staged integration, and apply broad formatting normalization across packages/apps.
• Introduce a new VirtuosoLite component in @youngro/ui and wire apps/web chat UI to a virtualized list (via react-virtuoso + a scrolling hook).
• Improve markdown rendering behavior (caching + streaming-friendly updates) and refactor /api/chat streaming/non-streaming handling to be adapter-based with better abort propagation.

Reviewed changes

Copilot reviewed 122 out of 130 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/utils/package.json	JSON normalization (no functional change).
packages/ui/src/internal/virtualizer-core/scroll-task.ts	New scroll-task helper module for virtualizer internals.
packages/ui/src/components/VirtuosoLite/VirtualItem.tsx	New measured item wrapper (ResizeObserver-based).
packages/ui/src/components/VirtuosoLite/types.ts	Public VirtuosoLite types/handle contracts.
packages/ui/src/components/VirtuosoLite/rangeCalculator.ts	Range + overscan + binary search helpers for virtualization.
packages/ui/src/components/VirtuosoLite/index.ts	Exports VirtuosoLite and its public types.
packages/ui/src/components/Textarea/Textarea.tsx	Formatting-only refactor.
packages/ui/src/components/Select/Select.tsx	Formatting-only refactor.
packages/ui/src/components/Select/index.ts	Formatting-only refactor.
packages/ui/src/components/Select/HeadlessSelect.tsx	Formatting-only refactor.
packages/ui/src/components/ScrollArea/ScrollArea.tsx	Formatting-only refactor.
packages/ui/src/components/RadioCard/RadioCard.tsx	Formatting-only refactor.
packages/ui/src/components/Radio/Radio.tsx	Formatting-only refactor.
packages/ui/src/components/PageHeader/PageHeader.tsx	Formatting-only refactor.
packages/ui/src/components/Menu/IconItem.tsx	Add linkComponent to support Next.js Link without hard dependency.
packages/ui/src/components/Input/Input.tsx	Formatting-only refactor.
packages/ui/src/components/index.ts	Export VirtuosoLite + consolidate exports formatting.
packages/ui/src/components/IconStatusItem/IconStatusItem.tsx	Add linkComponent to support Next.js Link without hard dependency.
packages/ui/src/components/HeaderLink/HeaderLink.tsx	Add linkComponent to support Next.js Link without hard dependency.
packages/ui/src/components/Field/Field.tsx	Formatting-only refactor.
packages/ui/src/components/Checkbox/Checkbox.tsx	Formatting-only refactor.
packages/ui/src/components/Card/index.ts	Formatting-only refactor.
packages/ui/src/components/Card/Card.tsx	Formatting-only refactor.
packages/ui/src/components/Button/Button.tsx	Formatting-only refactor.
packages/ui/src/components/BrandLogo/BrandLogo.tsx	Formatting-only refactor.
packages/ui/package.json	JSON normalization (no functional change).
packages/typescript-config/package.json	JSON normalization (no functional change).
packages/llm-tokens/src/index.ts	Formatting-only refactor.
packages/llm-tokens/src/index.test.ts	Formatting-only refactor.
packages/llm-tokens/package.json	JSON normalization (no functional change).
packages/icons/src/generated/TencentcloudIcon.tsx	Formatting-only refactor of generated icon.
packages/icons/src/generated/MoonshotIcon.tsx	Formatting-only refactor of generated icon.
packages/icons/src/generated/index.tsx	Consolidate named exports formatting.
packages/icons/src/generated/DeepseekIcon.tsx	Formatting-only refactor of generated icon.
packages/icons/src/build-icons.mjs	Formatting-only refactor; no logic change intended.
packages/icons/package.json	JSON normalization (no functional change).
packages/feature-chat/src/stream/ndjsonParser.ts	Formatting-only refactor.
packages/feature-chat/src/stores/useChatStore.ts	Formatting-only refactor.
packages/feature-chat/src/components/ChatDemo.tsx	Formatting-only refactor.
packages/feature-card/src/store/index.tsx	Prevent persisting state before initial load completes; formatting cleanups.
packages/feature-card/src/index.tsx	Formatting-only refactor.
packages/eslint-config/package.json	JSON normalization (no functional change).
packages/design-tokens/tailwind.config.cjs	Minor formatting simplifications.
packages/design-tokens/styles/chromatic.css	Formatting-only refactor.
packages/design-tokens/src/styles/chromatic.css	Formatting-only refactor.
packages/design-tokens/src/index.ts	Formatting-only refactor.
package.json	Add commit tooling + Husky hooks; change Prettier scripts to run on repo root.
eslint.config.mjs	Add flat ESLint config entrypoint with common ignores.
commitlint.config.mjs	Add commitlint config + cz-git prompt configuration.
apps/web/tsconfig.json	Formatting-only refactor.
apps/web/tailwind.config.cjs	Formatting-only refactor.
apps/web/src/store/speechStore.ts	Formatting-only refactor.
apps/web/src/store/providersStore.ts	Formatting-only refactor.
apps/web/src/lib/tts/chunker.ts	Formatting-only refactor.
apps/web/src/lib/providers/adapters/openaiCompatible.ts	Improve streaming reader teardown + avoid duplicate finish; formatting cleanups.
apps/web/src/lib/providers/adapter.ts	Formatting-only refactor.
apps/web/src/lib/markdownProcessor.ts	Cache fallback processor promise to avoid repeated instantiation.
apps/web/src/lib/chat/api.ts	Formatting-only refactor.
apps/web/src/lib/api/index.ts	Formatting-only refactor.
apps/web/src/hooks/useVirtualChatScroll.ts	New hook to manage Virtuoso scroll-to-bottom + “back to bottom” visibility.
apps/web/src/hooks/useTurnToPage.ts	Formatting-only refactor.
apps/web/src/hooks/useStreamingSpeechPlayback.ts	Formatting-only refactor.
apps/web/src/hooks/useSpeechResources.ts	Formatting-only refactor.
apps/web/src/hooks/useSpeechPlayback.ts	Formatting-only refactor.
apps/web/src/hooks/useScrollToHash.ts	Formatting-only refactor.
apps/web/src/hooks/useModulesList.ts	Formatting-only refactor.
apps/web/src/data/tencentVoices.json	Formatting-only refactor.
apps/web/src/data/settings/providers.ts	Formatting-only refactor.
apps/web/src/components/Widgets/AnimatedWave.tsx	Formatting-only refactor.
apps/web/src/components/ProviderPageHeader.tsx	Change “back” behavior to replace when using explicit href; formatting.
apps/web/src/components/MarkdownRenderer.tsx	Add HTML caching + streaming-friendly rendering cadence + fallback modes.
apps/web/src/components/Backgrounds/cross-background.css	Formatting-only refactor.
apps/web/scripts/test-api-chat.js	Formatting-only refactor.
apps/web/package.json	Add react-virtuoso; dependency ordering/formatting.
apps/web/next.config.mjs	Formatting-only refactor.
apps/web/app/settings/youngro-card/page.tsx	Adjust back navigation; formatting cleanups.
apps/web/app/settings/youngro-card/components/Toolbar.tsx	Formatting-only refactor.
apps/web/app/settings/youngro-card/components/IconButton.tsx	Formatting-only refactor.
apps/web/app/settings/youngro-card/components/FileInput.tsx	Formatting-only refactor.
apps/web/app/settings/youngro-card/components/CreateCardTile.tsx	Formatting-only refactor.
apps/web/app/settings/youngro-card/components/CardListItem.tsx	Formatting-only refactor.
apps/web/app/settings/youngro-card/components/CardDetailDialog.tsx	Formatting-only refactor.
apps/web/app/settings/youngro-card/components/CardCreationDialog.tsx	Formatting-only refactor.
apps/web/app/settings/providers/page.tsx	Use Next Link via linkComponent; back navigation uses replace.
apps/web/app/settings/providers/components/ClientProviderDetail.tsx	Use ProviderPageHeader backHref; formatting cleanups.
apps/web/app/settings/providers/[category]/[id]/page.tsx	Formatting-only refactor.
apps/web/app/settings/page.tsx	Use Next Link via linkComponent; back navigation uses replace.
apps/web/app/settings/modules/speech/page.tsx	Back navigation uses replace.
apps/web/app/settings/modules/speech/ClientSpeechPage.tsx	Formatting-only refactor.
apps/web/app/settings/modules/page.tsx	Use Next Link via linkComponent; back navigation uses replace.
apps/web/app/settings/modules/consciousness/page.tsx	Back navigation uses replace.
apps/web/app/settings/modules/consciousness/ClientConsciousnessPage.tsx	Formatting-only refactor.
apps/web/app/settings/layout.tsx	Header uses HeaderLink + Next Link via linkComponent.
apps/web/app/settings/components/FloatingSettings.tsx	Formatting-only refactor.
apps/web/app/layout.tsx	Formatting-only refactor.
apps/web/app/components-demo/page.tsx	Add VirtuosoLite demo component import; formatting cleanups.
apps/web/app/components-demo/_components/VirtuosoLiteChatDemo.module.css	New CSS for demo scrollbars/scroller.
apps/web/app/api/speech/providers/shared.ts	Formatting-only refactor.
apps/web/app/api/speech/providers/[providerId]/voices/route.ts	Formatting-only refactor.
apps/web/app/api/speech/providers/[providerId]/validate/route.ts	Formatting-only refactor.
apps/web/app/api/speech/providers/[providerId]/synthesize/route.ts	Formatting-only refactor.
apps/web/app/api/speech/providers/[providerId]/models/route.ts	Formatting-only refactor.
apps/web/app/api/chat/route.ts	Major refactor: explicit provider resolution, config shape validation, abort propagation, NDJSON event normalization, non-stream mode support.
apps/web/app/ai-chat/page.tsx	Formatting-only refactor.
apps/web/app/ai-chat/layout.tsx	Formatting-only refactor.
apps/web/app/ai-chat/_components/VirtualChatList.tsx	New Virtuoso-based virtualized chat list component.
apps/web/app/ai-chat/_components/InteractiveArea.tsx	Replace ScrollArea-based history wrapper with full-height flex layout (virtual list is handled inside ChatHistory).
apps/web/app/ai-chat/_components/InteractiveArea.module.css	Add .chatScroller styles for Virtuoso scroller.
apps/web/app/ai-chat/_components/ChatToolbar.tsx	Formatting-only refactor.
apps/web/app/ai-chat/_components/ChatHistory.tsx	Switch to virtualized rendering via VirtualChatList; optimize store selection.
apps/web/app/ai-chat/_components/AIChatMessage.tsx	Add memoization + pass markdown cache/streaming hints into MarkdownRenderer.
apps/web/tests/simpleModal.outsideClick.spec.tsx	Formatting-only refactor.
apps/docs/tsconfig.json	Formatting-only refactor.
apps/docs/app/page.tsx	Formatting-only refactor.
apps/docs/app/page.module.css	Formatting-only refactor.
apps/docs/app/layout.tsx	Formatting-only refactor.
.prettierrc.json	New Prettier configuration.
.prettierignore	New Prettier ignore list.
.opencode/skill/youngro-architecture/SKILL.md	New architecture/dependency guidance doc.
.lintstagedrc.json	New lint-staged config for pre-commit automation.
.husky/pre-commit	New Husky pre-commit hook running lint-staged.
.husky/commit-msg	New Husky commit-msg hook running commitlint.
.github/workflows/ci.yml	Minor whitespace cleanup.

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