docs: setup documentation website

[chenjiahan]

Summary

This PR adds a bilingual Rspress website for Rstack CLI, providing a project-owned home for future guides, command references, and configuration documentation.

The website runs through rs doc, includes a custom Rstack-themed homepage and shared ecosystem UI, and keeps unfinished documentation as TODO placeholders.

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 4498cec5-46a7-4a23-a5cf-0dc7f1bdd2ee

📥 Commits

Reviewing files that changed from the base of the PR and between 753b566 and 48600bb.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (42)

• package.json
• pnpm-workspace.yaml
• rstack.config.ts
• scripts/dictionary.txt
• website/README.md
• website/docs/en/_nav.json
• website/docs/en/commands/_meta.json
• website/docs/en/commands/index.mdx
• website/docs/en/config/_meta.json
• website/docs/en/config/index.mdx
• website/docs/en/guide/_meta.json
• website/docs/en/guide/introduction.mdx
• website/docs/en/guide/quick-start.mdx
• website/docs/en/index.mdx
• website/docs/zh/_nav.json
• website/docs/zh/commands/_meta.json
• website/docs/zh/commands/index.mdx
• website/docs/zh/config/_meta.json
• website/docs/zh/config/index.mdx
• website/docs/zh/guide/_meta.json
• website/docs/zh/guide/introduction.mdx
• website/docs/zh/guide/quick-start.mdx
• website/docs/zh/index.mdx
• website/env.d.ts
• website/i18n.json
• website/package.json
• website/rstack.config.ts
• website/theme/components/Copyright.module.scss
• website/theme/components/Copyright.tsx
• website/theme/components/Features.module.scss
• website/theme/components/Features.tsx
• website/theme/components/Hero.module.scss
• website/theme/components/Hero.tsx
• website/theme/components/HomeFooter.module.scss
• website/theme/components/HomeFooter.tsx
• website/theme/components/ToolStack.tsx
• website/theme/components/utils.ts
• website/theme/env.d.ts
• website/theme/index.scss
• website/theme/index.tsx
• website/theme/pages/index.tsx
• website/tsconfig.json

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chenjiahan/feat-website

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[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 48600bb1f9

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[chatgpt-codex-connector]

Prefix Chinese navigation links with the locale

When viewing the Chinese documentation, these root-relative links resolve to the English routes (/guide/..., /commands/..., and /config/...) instead of the corresponding /zh/... pages. The custom home links explicitly add the active language prefix in HomeFooter.tsx and useI18nUrl, so the top navigation should do the same (or use locale-aware URLs) to keep Chinese readers in the selected locale.

Useful? React with 👍 / 👎.