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Naiyuan Qing 5f1f08e466 feat(web): add use-cases content pipeline with welcome page (MUL-2349) (#2795)
* feat(web): add use-cases content pipeline with welcome page (MUL-2349)

Wire fumadocs-mdx into apps/web with an independent collection rooted at
content/use-cases/. Add the first page at /use-cases/welcome (header + H1 +
prose + screenshot + footer) using the about-page visual shell.

- source.config.ts + lib/use-cases-source.ts (separate from apps/docs)
- features/landing/components/mdx/screenshot.tsx wraps next/image
- public/use-cases/welcome/screenshot-1.png placeholder (55KB)
- next.config.ts wraps NextConfig with createMDX()
- .gitignore + eslint ignore .source/

Co-authored-by: multica-agent <github@multica.ai>

* feat(web): bilingual db-boy use case with cookie locale (MUL-2349)

Extends the use-cases pipeline into the first real article.

- ZH + EN MDX (auto-data-analysis.{zh,en}.mdx) sharing three real
  screenshots; sensitive fields on db-boy-profile.png (RDS host, DB
  name, password) are blurred in-place.
- Cookie-based locale: /use-cases/<slug> reads multica-locale
  server-side via lib/use-cases-i18n.ts (mirrors LandingLayout's
  cookie + Accept-Language fallback). Same URL serves either language;
  no [lang] segment so all other landing routes stay unchanged.
- Frontmatter schema (source.config.ts): z.looseObject with declared
  hero_image / updated_at (required) / category (optional); a
  preprocess converts YAML-auto-parsed Date back to a YYYY-MM-DD string.
- MDX components factory createMdxComponents(locale) routes the
  secondary CTA to /docs/zh (ZH) or /docs (EN); internal MDX links
  use <Link> for SPA nav; full-width and half-width colons both
  trigger [CTA: ...] / [占位图: ...] markers; 副 and Secondary
  both work as the secondary CTA prefix.
- Index page localizes hero / subtitle / card CTA / metadata; sort
  fallback uses an epoch placeholder so undefined-order disappears.
- Landing header + footer surface use-cases entry in both locales.
- Detail route: sticky header, right-rail TOC with anchor jumps,
  scroll-mt-[100px] on H2/H3 so anchor jumps don't slip under the
  sticky header.
- Drop welcome demo page.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(web): resolve code review blockers on use-cases PR

- Add `use-cases` to reserved_slugs.json + regenerate TS (P1: prevent
  future workspace slug collision)
- Fix dead links in both MDX files: /features/* → /docs/* (P2)
- Remove duplicate brand suffix in page title metadata (nit)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-authored-by: multica-agent <github@multica.ai>

* fix(web): align usecases locale routing

* chore: refresh web mdx lockfile

* fix(web): type mdx next config adapter

* fix(web): wrap settings route page

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Co-authored-by: multica-agent <github@multica.ai>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-25 10:05:17 +08:00
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