feat(youtube): add upload and analytics OAuth scopes

Add youtube.upload and yt-analytics.readonly scopes to enable video
uploading and analytics data retrieval in the YouTube Operations Hub.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/lib/integrations/youtube/oauth.ts

@@ -10,6 +10,8 @@ const SCOPES = [
   'https://www.googleapis.com/auth/youtube.readonly',
   'https://www.googleapis.com/auth/youtube.force-ssl',
   'https://www.googleapis.com/auth/youtube',
+  'https://www.googleapis.com/auth/youtube.upload',
+  'https://www.googleapis.com/auth/yt-analytics.readonly',
 ]
 
 /**

tests/unit/youtube/oauth-scopes.unit.spec.ts

@@ -0,0 +1,75 @@
+/**
+ * YouTube OAuth Scopes Unit Tests
+ *
+ * Verifies that all required OAuth scopes are present in the YouTube OAuth configuration,
+ * including upload and analytics scopes needed for the YouTube Operations Hub.
+ */
+
+import { describe, it, expect, vi } from 'vitest'
+
+vi.mock('googleapis', () => {
+  class MockOAuth2 {
+    generateAuthUrl({ scope }: { scope: string[] }): string {
+      return `https://accounts.google.com/o/oauth2/v2/auth?scope=${encodeURIComponent(scope.join(' '))}`
+    }
+  }
+
+  return {
+    google: {
+      auth: {
+        OAuth2: MockOAuth2,
+      },
+    },
+  }
+})
+
+vi.stubEnv('YOUTUBE_CLIENT_ID', 'test-client-id')
+vi.stubEnv('YOUTUBE_CLIENT_SECRET', 'test-client-secret')
+vi.stubEnv('YOUTUBE_REDIRECT_URI', 'https://test.example.com/api/youtube/callback')
+
+describe('YouTube OAuth Scopes', () => {
+  it('should include youtube.readonly scope', async () => {
+    vi.resetModules()
+    const { getAuthUrl } = await import('@/lib/integrations/youtube/oauth')
+    const url = getAuthUrl()
+    expect(url).toContain('youtube.readonly')
+  })
+
+  it('should include youtube.force-ssl scope', async () => {
+    vi.resetModules()
+    const { getAuthUrl } = await import('@/lib/integrations/youtube/oauth')
+    const url = getAuthUrl()
+    expect(url).toContain('youtube.force-ssl')
+  })
+
+  it('should include youtube scope (full access)', async () => {
+    vi.resetModules()
+    const { getAuthUrl } = await import('@/lib/integrations/youtube/oauth')
+    const url = getAuthUrl()
+    expect(url).toContain('auth%2Fyoutube')
+  })
+
+  it('should include youtube.upload scope', async () => {
+    vi.resetModules()
+    const { getAuthUrl } = await import('@/lib/integrations/youtube/oauth')
+    const url = getAuthUrl()
+    expect(url).toContain('youtube.upload')
+  })
+
+  it('should include yt-analytics.readonly scope', async () => {
+    vi.resetModules()
+    const { getAuthUrl } = await import('@/lib/integrations/youtube/oauth')
+    const url = getAuthUrl()
+    expect(url).toContain('yt-analytics.readonly')
+  })
+
+  it('should contain exactly 5 scopes', async () => {
+    vi.resetModules()
+    const { getAuthUrl } = await import('@/lib/integrations/youtube/oauth')
+    const url = getAuthUrl()
+    const decodedUrl = decodeURIComponent(url)
+    const scopeParam = decodedUrl.split('scope=')[1]
+    const scopes = scopeParam.split(' ')
+    expect(scopes).toHaveLength(5)
+  })
+})