Implement OAuth client and token management with settings updates (#464)

src/db/entities/OAuthClient.ts

@@ -0,0 +1,60 @@
+import {
+  Entity,
+  Column,
+  PrimaryGeneratedColumn,
+  CreateDateColumn,
+  UpdateDateColumn,
+} from 'typeorm';
+
+/**
+ * OAuth Client entity for database storage
+ * Represents OAuth clients registered with MCPHub's authorization server
+ */
+@Entity({ name: 'oauth_clients' })
+export class OAuthClient {
+  @PrimaryGeneratedColumn('uuid')
+  id: string;
+
+  @Column({ name: 'client_id', type: 'varchar', length: 255, unique: true })
+  clientId: string;
+
+  @Column({ name: 'client_secret', type: 'varchar', length: 255, nullable: true })
+  clientSecret?: string;
+
+  @Column({ type: 'varchar', length: 255 })
+  name: string;
+
+  @Column({ name: 'redirect_uris', type: 'simple-json' })
+  redirectUris: string[];
+
+  @Column({ type: 'simple-json' })
+  grants: string[];
+
+  @Column({ type: 'simple-json', nullable: true })
+  scopes?: string[];
+
+  @Column({ type: 'varchar', length: 255, nullable: true })
+  owner?: string;
+
+  @Column({ type: 'simple-json', nullable: true })
+  metadata?: {
+    application_type?: 'web' | 'native';
+    response_types?: string[];
+    token_endpoint_auth_method?: string;
+    contacts?: string[];
+    logo_uri?: string;
+    client_uri?: string;
+    policy_uri?: string;
+    tos_uri?: string;
+    jwks_uri?: string;
+    jwks?: object;
+  };
+
+  @CreateDateColumn({ name: 'created_at', type: 'timestamp' })
+  createdAt: Date;
+
+  @UpdateDateColumn({ name: 'updated_at', type: 'timestamp' })
+  updatedAt: Date;
+}
+
+export default OAuthClient;