feat: HSAP platform v2 — modular navigation, quality review, audit log, world model simulation

Major changes:
- New frontend (platform/web/): Vite + React 18 + TypeScript + Tailwind
- 4-module navigation: 数据送标 / 模型管理 / 车队管理 / 系统管理
- Data catalog with charts (DMS/ADAS/Lane 3-tab view)
- Quality review workflow (标注质检): Good/Fine/Bad scoring with auto-advance
- Audit enhancements: batch operations, rejection categories, Feishu notifications
- Operation audit log (操作日志)
- World model simulation studio (仿真工坊)
- Dataset version management with snapshots and diff
- ADAS 7-class dataset integration (138K images organized + compressed)
- User management with Feishu integration and pagination
- CRUD/search/filter on all pages, card layout redesign
- PIL-optimized image overlay rendering
- Auto-snapshot on build, in_review workflow stage
- Removed embedded algorithm code (now in workspace)

platform/web/node_modules/postcss-nested/README.md

@@ -0,0 +1,85 @@
+# PostCSS Nested
+
+<img align="right" width="135" height="95"
+     title="Philosopher’s stone, logo of PostCSS"
+     src="https://postcss.org/logo-leftp.svg">
+
+[PostCSS] plugin to unwrap nested rules closer to Sass syntax.
+
+```css
+.phone {
+  &_title {
+    width: 500px;
+    @media (max-width: 500px) {
+      width: auto;
+    }
+    body.is_dark & {
+      color: white;
+    }
+  }
+  img {
+    display: block;
+  }
+}
+
+.title {
+  font-size: var(--font);
+
+  @at-root html {
+    --font: 16px;
+  }
+}
+```
+
+will be processed to:
+
+```css
+.phone_title {
+  width: 500px;
+}
+@media (max-width: 500px) {
+  .phone_title {
+    width: auto;
+  }
+}
+body.is_dark .phone_title {
+  color: white;
+}
+.phone img {
+  display: block;
+}
+
+.title {
+  font-size: var(--font);
+}
+html {
+  --font: 16px;
+}
+```
+
+Related plugins:
+
+- Use [`postcss-current-selector`] **after** this plugin if you want
+  to use current selector in properties or variables values.
+- Use [`postcss-nested-ancestors`] **before** this plugin if you want
+  to reference any ancestor element directly in your selectors with `^&`.
+
+Alternatives:
+
+- See also [`postcss-nesting`], which implements [CSSWG draft].
+- [`postcss-nested-props`] for nested properties like `font-size`.
+
+<a href="https://evilmartians.com/?utm_source=postcss-nested">
+  <img src="https://evilmartians.com/badges/sponsored-by-evil-martians.svg"
+       alt="Sponsored by Evil Martians" width="236" height="54">
+</a>
+
+[`postcss-current-selector`]: https://github.com/komlev/postcss-current-selector
+[`postcss-nested-ancestors`]: https://github.com/toomuchdesign/postcss-nested-ancestors
+[`postcss-nested-props`]: https://github.com/jedmao/postcss-nested-props
+[`postcss-nesting`]: https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-nesting
+[CSSWG draft]: https://drafts.csswg.org/css-nesting-1/
+[PostCSS]: https://github.com/postcss/postcss
+
+## Docs
+Read full docs **[here](https://github.com/postcss/postcss-nested#readme)**.