feat: Implement repositories for authentication, certificates, metrics, and platform services

- Added AuthRepository for user and settings management with CRUD operations.
- Introduced CertificateRepository to handle domains, certificates, and requirements.
- Created MetricsRepository for managing metrics and logs.
- Developed PlatformRepository for platform services and resources management.
- Established RegistryRepository for registry and token operations.
- Implemented ServiceRepository for CRUD operations on services.
- Defined types and interfaces in types.ts for database interactions.

ts/database/repositories/auth.repository.ts

@@ -0,0 +1,83 @@
+/**
+ * Auth Repository
+ * Handles CRUD operations for users and settings tables
+ */
+
+import { BaseRepository } from '../base.repository.ts';
+import type { IUser } from '../../types.ts';
+
+export class AuthRepository extends BaseRepository {
+  // ============ Users ============
+
+  async createUser(user: Omit<IUser, 'id'>): Promise<IUser> {
+    const now = Date.now();
+    this.query(
+      'INSERT INTO users (username, password_hash, role, created_at, updated_at) VALUES (?, ?, ?, ?, ?)',
+      [user.username, user.passwordHash, user.role, now, now]
+    );
+
+    return this.getUserByUsername(user.username)!;
+  }
+
+  getUserByUsername(username: string): IUser | null {
+    const rows = this.query('SELECT * FROM users WHERE username = ?', [username]);
+    return rows.length > 0 ? this.rowToUser(rows[0]) : null;
+  }
+
+  getAllUsers(): IUser[] {
+    const rows = this.query('SELECT * FROM users ORDER BY created_at DESC');
+    return rows.map((row) => this.rowToUser(row));
+  }
+
+  updateUserPassword(username: string, passwordHash: string): void {
+    this.query('UPDATE users SET password_hash = ?, updated_at = ? WHERE username = ?', [
+      passwordHash,
+      Date.now(),
+      username,
+    ]);
+  }
+
+  deleteUser(username: string): void {
+    this.query('DELETE FROM users WHERE username = ?', [username]);
+  }
+
+  private rowToUser(row: any): IUser {
+    return {
+      id: Number(row.id || row[0]),
+      username: String(row.username || row[1]),
+      passwordHash: String(row.password_hash || row[2]),
+      role: String(row.role || row[3]) as IUser['role'],
+      createdAt: Number(row.created_at || row[4]),
+      updatedAt: Number(row.updated_at || row[5]),
+    };
+  }
+
+  // ============ Settings ============
+
+  getSetting(key: string): string | null {
+    const rows = this.query('SELECT value FROM settings WHERE key = ?', [key]);
+    if (rows.length === 0) return null;
+
+    const value = (rows[0] as any).value || rows[0][0];
+    return value ? String(value) : null;
+  }
+
+  setSetting(key: string, value: string): void {
+    const now = Date.now();
+    this.query(
+      'INSERT OR REPLACE INTO settings (key, value, updated_at) VALUES (?, ?, ?)',
+      [key, value, now]
+    );
+  }
+
+  getAllSettings(): Record<string, string> {
+    const rows = this.query('SELECT key, value FROM settings');
+    const settings: Record<string, string> = {};
+    for (const row of rows) {
+      const key = (row as any).key || row[0];
+      const value = (row as any).value || row[1];
+      settings[String(key)] = String(value);
+    }
+    return settings;
+  }
+}