fix(pages): restore doc-download icon color for Docs page (#256)

* feat(pages): redesign landing page UI with i18n support

- Redesign all sections based on design file: Navbar, Hero, Highlights, UseCases, Features, Benchmark, QuickStart, Footer
- Add scroll fade-in animation with IntersectionObserver
- Implement full i18n (English/Chinese) with language toggle button
- Add SVG icons and image assets
- Style refinements: table borders, step containers, button styles, spacing

* feat(pages): redesign Docs page with i18n, responsive sidebar, and aligned copy interaction

- Redesign DocsPage UI based on reference HTML design
- Add i18n support for all Docs content (en/zh/ja)
- Fix right sidebar CONTENTS nav with fixed positioning
- Add container backgrounds (4% opacity, 16% border)
- Hide CONTENTS sidebar on mobile instead of alternative UI
- Align copy icon and toast interaction with QuickStart section
- Add new SVG icon assets for docs page
- Add Japanese language support
- Add ColorBends animated background component
- Add responsive hooks and FadeInSection animation
- Add Benchmark, Features, QuickStart standalone pages
- Update Navbar, Footer, and LandingPage components

* refactor: cleanup design drafts, rename Chinese assets, UI improvements

- Remove unused design draft folders (html-files, html-files (1), inpt, doc)
- Rename Chinese-named image files (容器-4_*.svg → provider-*.svg)
- Add language switcher icon to Navbar with dynamic character display
- Align Footer padding with Navbar (32px desktop, 16px mobile)
- Fix CONTENTS sidebar position on wide screens
- Add i18n support for Docs CONTENTS title
- Fix clipboard copy fallback for HTTP/LAN environments
- Adjust Toast padding, benchmark medal sizes
- Swap highlight stats positions (Adoption Rate ↔ Active Users)
- Update stat4 value to 25.10% and stat5 caption to Battle-tested
- Unify Hero buttons size with Navbar Get Started button

* refactor: rename icon assets with semantic English names and cleanup unused files

- Rename all svg_*.svg icons to semantic names based on usage context:
  - icon-feature-*.svg for feature section icons
  - icon-usecase-*.svg for use case section icons
  - icon-chevron-*.svg, icon-copy.svg, icon-play.svg for UI controls
  - icon-github.svg, icon-language.svg, icon-sort.svg, icon-terminal-prompt.svg
- Remove unused assets: 5 unreferenced svg icons, image_9e7821.png, provider-8.svg
- Remove debug screenshots: debug-screenshot.png, debug-wide.png
- Remove .vsix build artifact and add *.vsix to .gitignore
- Update all import paths in components accordingly

* fix: address PR review feedback - bugs and improvements

- Fix copy-paste bug: step3Label1 had wrong text in all 3 languages
  - en: 'Interactive Setup (Recommended)' → 'Review Commands'
  - zh: '交互式设置（推荐）' → '运行审查命令'
  - ja: '対話式セットアップ（推奨）' → 'レビュー実行'
- Fix inconsistent indentation (4 spaces → 2 spaces) in i18n files
- Add .catch() handler for navigator.clipboard.writeText() in QuickStartSection
- Check document.execCommand('copy') return value before showing toast
- Extract fallbackCopy helper to deduplicate clipboard logic
- Remove unused useCallback import from HighlightsSection
- Move @types/three from dependencies to devDependencies
- Add i18n key 'hero.terminal' for hardcoded Terminal label

* fix: revert vscode .gitignore change and remove duplicate root SVGs

- Revert extensions/vscode/.gitignore to upstream state (remove *.vsix rule)
- Remove root-level brandicon.svg, claude code icon.svg, codex icon.svg
  (identical copies already exist in pages/src/assets/images/ with proper names)

* fix: reorder highlights stats to match design reference

- Reorder stats: 20K+ Active Users → > 30% Adoption Rate → 1M+ Tasks → 1/9 Token Cost → 25.10% AACR-BENCH
- Update stat1 value from 30K+ to 20K+
- Sync all three languages (en/zh/ja)

* chore: remove unused debug screenshots

* chore: remove unused image_9e7821.png

* feat(pages): consolidate icons, add scroll-to-top, responsive titles

- Merge provider-1~7.svg into single icon-ocr-source.svg
- Add ScrollToTop component for tab navigation reset
- Add tablet breakpoint (36px) to section titles for responsive scaling

* refactor(pages): extract shared responsive title hook, fix indentation

- Create useSectionTitleStyle hook to eliminate nested ternaries
- Replace duplicated responsive logic in 4 section components
- Fix fragment children indentation in App.tsx

Addresses code review feedback from PR #241

* feat(pages): add install badge with shimmer effect and copy functionality

- Add install badge above hero title with download/copy icons
- Implement text shimmer animation (left-to-right, 5s cycle)
- Add clipboard copy with secure context check and fallback
- Set download icon color to #2bde5e
- Set badge background to rgba(0,0,0,0.8)
- Fix mobile responsive width for badge

* fix(pages): address PR #254 code review feedback

- Add prefers-reduced-motion media query for shimmer animation
- Extract install command to INSTALL_CMD constant (DRY)
- Use t() i18n function for toast messages (hero.copied/hero.copyFailed)
- Show error feedback when copy operation fails
- Refactor handleCopy to use async/await instead of .then/.catch

* fix(pages): align hero install badge toast style with QuickStart section

- Use consistent toast visual: rgba(255,255,255,0.1) bg, 0.2 border, 0.85 text
- Match padding (5px 14px), borderRadius (6px), fontSize (12px)
- Position at top: 88px (below navbar)

* fix(pages): separate green download icon for hero badge, restore docs icon

- Restore doc-download.svg to original white (#FFFFFF, opacity 0.8) for Docs page
- Create doc-download-green.svg (#2bde5e) for Hero install badge
- Update HeroSection import to use green variant

* fix(pages): restore doc-download.svg to white for Docs page

- Restore doc-download.svg fill to #FFFFFF with opacity 0.8
- Hero badge uses separate doc-download-green.svg (#2bde5e)

pages/src/assets/icons/doc-download-green.svg

@@ -0,0 +1 @@
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pages/src/assets/icons/doc-download.svg

@@ -1 +1 @@
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pages/src/components/HeroSection.tsx

@@ -3,7 +3,7 @@ import ReactDOM from 'react-dom';
 import { useTranslation } from '../i18n';
 import { useResponsive } from '../hooks/useResponsive';
 import ColorBends from './ColorBends';
-import docDownloadIcon from '../assets/icons/doc-download.svg';
+import docDownloadIcon from '../assets/icons/doc-download-green.svg';
 import copyIcon from '../assets/icons/icon-copy.svg';