Add 一本经的传记 book-biography page, implemented for 心经 (Heart Sutra)

[cubxxw]

Summary

Implements a complete, themed 书籍详情页 (book biography) — one of the pages the README listed as "not yet built" — ported from the design handoff prototype design/project/老树 · 道德经.dc.html, generalized so it's not tied to one book, and filled in with a fully researched Buddhist text: the 心经 (Heart Sutra).

• src/books/types.ts — the BookBioData shape any themed book plugs into (title, colophon, timeline nodes, comparison blocks, growth-ring annotations).
• src/books/heartSutra.ts — 心经's content: composition in the Prajñāpāramitā corpus, Kumārajīva's 402 CE translation, Xuanzang's 649 CE definitive version (with the pilgrim-monk legend), Huairen's 672 CE Wang Xizhi calligraphy stele, anonymous Dunhuang manuscripts, Edward Conze's 1948 critical Sanskrit edition, its adoption into Western Zen practice (Suzuki Roshi, 1959), Jan Nattier's 1992 "Chinese apocryphal text" hypothesis (rendered as a side-by-side 经文在此改变 comparison — the same device the design prototype uses for the Tao Te Ching's Mawangdui silk manuscripts), Thich Nhat Hanh's 2014 retranslation, and today's still-growing annotations.
• src/BookBio.tsx / src/BookBio.css — the page itself: scroll-revealed timeline (IntersectionObserver), day/night toggle shared with 我的树, the comparison block, and the growth-rings section. Book-agnostic — takes a BookBioData as a prop, so a Western-philosophy text or 源氏物语 can be added later as just another data file plus a route.
• src/main.tsx — added react-router-dom, routing / to 我的树 and /book/heart-sutra to the new page.
• src/MyTree.tsx — added a nav link (心经 · 一本经的传记) so the new page is discoverable.

Test plan

• npm run build (tsc -b && vite build) passes clean.
• Verified in a headless browser: navigated from 我的树 → /book/heart-sutra, confirmed all 10 timeline nodes render, the comparison block renders both columns, all 3 growth-ring annotations render, and no React console errors are thrown.
• Screenshotted the hero and timeline to confirm visual fidelity to the design tokens (paper/ink/cinnabar palette, Noto Serif SC, no gradients/glow/counts per the design's 禁则).

🤖 Generated with Claude Code

https://claude.ai/code/session_01AqzxzRKdJbuqeiVAR1YzDW

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Generated by Claude Code

[cubxxw]

Superseded by #10, but the content here is the anchor of the new 心經 planting.

src/BookBio.tsx (this PR's biography component) was superseded by src/pages/BookDetail.tsx when PR #1 merged. But the biography content in src/books/heartSutra.ts — 罗什 402 → 玄奘 649 → 怀仁集王羲之 → 敦煌抄经生 → Conze 1948 → 铃木俊隆 1959 → Jan Nattier 1992 as the 「汉文伪经?」 fork → 一行禅师 2014 — is the best treatment of the Heart Sutra I've seen anywhere, especially the Nattier reversal rendered as a two-column compare.

What was salvaged into #10: all ten biography nodes here, adapted to main's BioNode shape; the Nattier compare becomes the special variant-comparison box; all three reader rings (沈一苇 / 周菡 / 陈拾) lifted verbatim.

Closing in favor of #10, with credit — you did the hard work of the actual content.