feat(p1): complete P1 foundation stage

- monorepo: pnpm workspace + go.work + pyproject.toml + commitlint/husky
- infra: docker-compose (minimal + full profiles) + init-sql + prometheus
- arch-scan: multi-language scanner skeleton (TS/Go/Python/Proto)
- shared-proto: buf v2 + classes.proto (ClassService CRUD contract)
- api-gateway: Go/Gin + JWT HS256 auth + reverse proxy + request ID
- classes: NestJS golden template (error system + observability + middleware + CRUD + tests)
- teacher-portal: Next.js + paper-feel UI design system
- CI/CD: 4 workflows (go/ts/py/proto)
- docs: migration guide + project_rules + coding-standards + git-workflow + ui-design-system + 004 + 9 module READMEs + known-issues + spec/plan migration + roadmap

scripts/arch-scan/scanner.ts

@@ -0,0 +1,33 @@
+#!/usr/bin/env tsx
+import { createDb } from './schema.js';
+import { scanTypeScript } from './scanners/ts-scanner.js';
+import { scanGo } from './scanners/go-scanner.js';
+import { scanPython } from './scanners/py-scanner.js';
+import { scanProtobuf } from './scanners/proto-scanner.js';
+import path from 'node:path';
+
+const ROOT = process.cwd();
+
+function main(): void {
+  const db = createDb(path.join(ROOT, 'arch.db'));
+
+  console.log('🔍 arch-scan: 开始多语言扫描...');
+
+  // 串行扫描（并行会导致 FOREIGN KEY 错误）
+  const tsStats = scanTypeScript(db, ROOT);
+  console.log(`  TypeScript: ${tsStats.modules} 模块, ${tsStats.symbols} 符号`);
+
+  const goStats = scanGo(db, ROOT);
+  console.log(`  Go: ${goStats.modules} 模块, ${goStats.symbols} 符号`);
+
+  const pyStats = scanPython(db, ROOT);
+  console.log(`  Python: ${pyStats.modules} 模块, ${pyStats.symbols} 符号`);
+
+  const protoStats = scanProtobuf(db, ROOT);
+  console.log(`  Protobuf: ${protoStats.contracts} 契约`);
+
+  console.log('✅ arch-scan 完成');
+  db.close();
+}
+
+main();