feat: add GitLab Duo and CodeBuddy support, update observability settings

src/lib/oauth/constants/oauth.js

@@ -216,6 +216,31 @@ export const CLINE_CONFIG = {
   refreshUrl: "https://api.cline.bot/api/v1/auth/refresh",
 };
 
+// GitLab Duo OAuth Configuration (Authorization Code Flow with PKCE)
+// Supports both OAuth (PKCE) and Personal Access Token (PAT) modes
+export const GITLAB_CONFIG = {
+  defaultBaseUrl: "https://gitlab.com",
+  authorizeUrlPath: "/oauth/authorize",
+  tokenUrlPath: "/oauth/token",
+  userInfoUrlPath: "/api/v4/user",
+  scope: "api read_user",
+  codeChallengeMethod: "S256",
+};
+
+// CodeBuddy (Tencent) OAuth Configuration (Browser OAuth Polling Flow)
+// Step 1: POST /v2/plugin/auth/state?platform=CLI → get { state, authUrl }
+// Step 2: Open authUrl in browser
+// Step 3: Poll POST /v2/plugin/auth/token with state until success
+export const CODEBUDDY_CONFIG = {
+  baseUrl: "https://copilot.tencent.com",
+  stateUrl: "https://copilot.tencent.com/v2/plugin/auth/state",
+  tokenUrl: "https://copilot.tencent.com/v2/plugin/auth/token",
+  refreshUrl: "https://copilot.tencent.com/v2/plugin/auth/token/refresh",
+  userAgent: "CLI/2.63.2 CodeBuddy/2.63.2",
+  platform: "CLI",
+  pollInterval: 5000,
+};
+
 // OAuth timeout (5 minutes)
 export const OAUTH_TIMEOUT = 300000;
 
@@ -234,4 +259,6 @@ export const PROVIDERS = {
   KIMI_CODING: "kimi-coding",
   KILOCODE: "kilocode",
   CLINE: "cline",
+  GITLAB: "gitlab",
+  CODEBUDDY: "codebuddy",
 };