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/schema.ts

@@ -0,0 +1,83 @@
+import Database from 'better-sqlite3';
+import type { Database as DBType } from 'better-sqlite3';
+
+export function initSchema(db: DBType): void {
+  db.pragma('journal_mode = WAL');
+  db.pragma('foreign_keys = ON');
+
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS modules (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL UNIQUE,
+      path TEXT NOT NULL,
+      language TEXT NOT NULL DEFAULT 'ts',
+      service TEXT,
+      type TEXT NOT NULL DEFAULT 'module'
+    );
+
+    CREATE TABLE IF NOT EXISTS symbols (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      module_id INTEGER NOT NULL,
+      name TEXT NOT NULL,
+      kind TEXT NOT NULL,
+      language TEXT NOT NULL,
+      file_path TEXT NOT NULL,
+      line_start INTEGER,
+      line_end INTEGER,
+      is_exported INTEGER DEFAULT 0,
+      is_public INTEGER DEFAULT 0,
+      FOREIGN KEY (module_id) REFERENCES modules(id)
+    );
+
+    CREATE TABLE IF NOT EXISTS calls (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      caller_id INTEGER,
+      callee_id INTEGER,
+      callee_name TEXT NOT NULL,
+      file_path TEXT NOT NULL,
+      line INTEGER,
+      FOREIGN KEY (caller_id) REFERENCES symbols(id),
+      FOREIGN KEY (callee_id) REFERENCES symbols(id)
+    );
+
+    CREATE TABLE IF NOT EXISTS dependencies (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      source_module_id INTEGER NOT NULL,
+      target_module_id INTEGER NOT NULL,
+      FOREIGN KEY (source_module_id) REFERENCES modules(id),
+      FOREIGN KEY (target_module_id) REFERENCES modules(id),
+      UNIQUE (source_module_id, target_module_id)
+    );
+
+    CREATE TABLE IF NOT EXISTS contracts (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      type TEXT NOT NULL,
+      file_path TEXT NOT NULL,
+      service TEXT,
+      content TEXT
+    );
+
+    CREATE TABLE IF NOT EXISTS events (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL,
+      producer_module_id INTEGER,
+      consumer_count INTEGER DEFAULT 0,
+      file_path TEXT,
+      FOREIGN KEY (producer_module_id) REFERENCES modules(id)
+    );
+
+    CREATE INDEX IF NOT EXISTS idx_symbols_module ON symbols(module_id);
+    CREATE INDEX IF NOT EXISTS idx_symbols_name ON symbols(name);
+    CREATE INDEX IF NOT EXISTS idx_calls_caller ON calls(caller_id);
+    CREATE INDEX IF NOT EXISTS idx_calls_callee_name ON calls(callee_name);
+    CREATE INDEX IF NOT EXISTS idx_deps_source ON dependencies(source_module_id);
+    CREATE INDEX IF NOT EXISTS idx_deps_target ON dependencies(target_module_id);
+  `);
+}
+
+export function createDb(dbPath: string = 'arch.db'): DBType {
+  const db = new Database(dbPath);
+  initSchema(db);
+  return db;
+}