feat: implement OpenCode authentication and provider setup

- Added OpenCode authentication status check to the OpencodeProvider class.
- Introduced OpenCodeAuthStatus interface to manage authentication states.
- Updated detectInstallation method to include authentication status in the response.
- Created ProvidersSetupStep component to consolidate provider setup UI, including Claude, Cursor, Codex, and OpenCode.
- Refactored setup view to streamline navigation and improve user experience.
- Enhanced OpenCode CLI integration with updated installation paths and authentication checks.

This commit enhances the setup process by allowing users to configure and authenticate multiple AI providers, improving overall functionality and user experience.

apps/server/src/providers/opencode-provider.ts

@@ -22,7 +22,18 @@ import type {
   ContentBlock,
 } from '@automaker/types';
 import { stripProviderPrefix } from '@automaker/types';
-import { type SubprocessOptions } from '@automaker/platform';
+import { type SubprocessOptions, getOpenCodeAuthIndicators } from '@automaker/platform';
+
+// =============================================================================
+// OpenCode Auth Types
+// =============================================================================
+
+export interface OpenCodeAuthStatus {
+  authenticated: boolean;
+  method: 'api_key' | 'oauth' | 'none';
+  hasOAuthToken?: boolean;
+  hasApiKey?: boolean;
+}
 
 // =============================================================================
 // OpenCode Stream Event Types
@@ -583,6 +594,48 @@ export class OpencodeProvider extends CliProvider {
     return supportedFeatures.includes(feature);
   }
 
+  // ==========================================================================
+  // Authentication
+  // ==========================================================================
+
+  /**
+   * Check authentication status for OpenCode CLI
+   *
+   * Checks for authentication via:
+   * - OAuth token in auth file
+   * - API key in auth file
+   */
+  async checkAuth(): Promise<OpenCodeAuthStatus> {
+    const authIndicators = await getOpenCodeAuthIndicators();
+
+    // Check for OAuth token
+    if (authIndicators.hasOAuthToken) {
+      return {
+        authenticated: true,
+        method: 'oauth',
+        hasOAuthToken: true,
+        hasApiKey: authIndicators.hasApiKey,
+      };
+    }
+
+    // Check for API key
+    if (authIndicators.hasApiKey) {
+      return {
+        authenticated: true,
+        method: 'api_key',
+        hasOAuthToken: false,
+        hasApiKey: true,
+      };
+    }
+
+    return {
+      authenticated: false,
+      method: 'none',
+      hasOAuthToken: false,
+      hasApiKey: false,
+    };
+  }
+
   // ==========================================================================
   // Installation Detection
   // ==========================================================================
@@ -593,16 +646,21 @@ export class OpencodeProvider extends CliProvider {
    * Checks if the opencode CLI is available either through:
    * - Direct installation (npm global)
    * - NPX (fallback on Windows)
+   * Also checks authentication status.
    */
   async detectInstallation(): Promise<InstallationStatus> {
     this.ensureCliDetected();
 
     const installed = await this.isInstalled();
+    const auth = await this.checkAuth();
 
     return {
       installed,
       path: this.cliPath || undefined,
       method: this.detectedStrategy === 'npx' ? 'npm' : 'cli',
+      authenticated: auth.authenticated,
+      hasApiKey: auth.hasApiKey,
+      hasOAuthToken: auth.hasOAuthToken,
     };
   }
 }

apps/server/src/routes/setup/routes/opencode-status.ts

@@ -12,7 +12,7 @@ import { getErrorMessage, logError } from '../common.js';
  */
 export function createOpencodeStatusHandler() {
   const installCommand = 'curl -fsSL https://opencode.ai/install | bash';
-  const loginCommand = 'opencode auth';
+  const loginCommand = 'opencode auth login';
 
   return async (_req: Request, res: Response): Promise<void> => {
     try {
@@ -35,11 +35,13 @@ export function createOpencodeStatusHandler() {
           method: authMethod,
           hasApiKey: status.hasApiKey || false,
           hasEnvApiKey: !!process.env.ANTHROPIC_API_KEY || !!process.env.OPENAI_API_KEY,
-          hasOAuthToken: false, // OpenCode doesn't use OAuth
+          hasOAuthToken: status.hasOAuthToken || false,
         },
         recommendation: status.installed
           ? undefined
           : 'Install OpenCode CLI to use multi-provider AI models.',
+        installCommand,
+        loginCommand,
         installCommands: {
           macos: installCommand,
           linux: installCommand,