feat(site): show projects in homepage hero

[Hailaylin]

Summary / 概要

• 将共享项目数据直接展示在首页首屏底部，采用 B「轨道切入」横向布局
• 增加左右控制、原生横向滚动、Scroll Snap 与键盘可达性
• 删除重复的三入口区和底部项目占位区
• 将资料区改为直接说明“已整理的硬件资料”
• 覆盖 1366×768、1024×600 与 390×844 首屏行为

Verification / 验证

• bun run check：0 errors / 0 warnings
• bun run test:unit：5/5 passed
• bun run test:e2e：16/16 passed
• bun run build：13 pages built

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Avoid linking the homepage card to a missing driver

When visitors click the first newly rendered project card, this href resolves to driver/reference on main, but a repository-wide search shows that only the empty top-level driver/ directory exists and no driver/reference artifact is generated. The homepage therefore promotes a “可运行” project that immediately returns a GitHub 404; omit this card or point it at an existing reference snapshot until the real driver target is implemented.

AGENTS.md reference: AGENTS.md:L7-L12

Useful? React with 👍 / 👎.

[chatgpt-codex-connector]

Preserve hero content in short mobile viewports

On short mobile or landscape viewports, the fixed stage height leaves almost no room above the project rail: at 667×375, this computes to 289px while the rail consumes 218px plus a 12px bottom offset, leaving only 59px for the heading and buttons. Because .hero-stage also has overflow: hidden, most of that content is clipped or covered despite the short-height rule hiding only the lede and specs; add a compact short-mobile layout or a usable minimum height.

Useful? React with 👍 / 👎.