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/autoprefixer/lib/hacks/placeholder.js

@@ -0,0 +1,33 @@
+let Selector = require('../selector')
+
+class Placeholder extends Selector {
+  /**
+   * Add old mozilla to possible prefixes
+   */
+  possible() {
+    return super.possible().concat(['-moz- old', '-ms- old'])
+  }
+
+  /**
+   * Return different selectors depend on prefix
+   */
+  prefixed(prefix) {
+    if (prefix === '-webkit-') {
+      return '::-webkit-input-placeholder'
+    }
+    if (prefix === '-ms-') {
+      return '::-ms-input-placeholder'
+    }
+    if (prefix === '-ms- old') {
+      return ':-ms-input-placeholder'
+    }
+    if (prefix === '-moz- old') {
+      return ':-moz-placeholder'
+    }
+    return `::${prefix}placeholder`
+  }
+}
+
+Placeholder.names = ['::placeholder']
+
+module.exports = Placeholder