feat(integrations): deep GitHub integration for AI agents

.gitignore

@@ -170,4 +170,5 @@ playground.xcworkspace
 # Claude Code skills & agents (local plugin data)
 .agents/
 .claude/skills/
+.claude/*.local.md
 skills-lock.json

apps/web/src/components/layout/middle-content/page-views/code/CodePageView.tsx

@@ -55,46 +55,10 @@ const LANGUAGES = [
   { value: 'scss', label: 'SCSS' },
 ] as const;
 
-const EXTENSION_MAP: Record<string, string> = {
-  'js': 'javascript',
-  'jsx': 'javascript',
-  'ts': 'typescript',
-  'tsx': 'typescript',
-  'py': 'python',
-  'java': 'java',
-  'c': 'c',
-  'cpp': 'cpp',
-  'cs': 'csharp',
-  'rb': 'ruby',
-  'go': 'go',
-  'rs': 'rust',
-  'php': 'php',
-  'swift': 'swift',
-  'kt': 'kotlin',
-  'html': 'html',
-  'css': 'css',
-  'scss': 'scss',
-  'json': 'json',
-  'xml': 'xml',
-  'yaml': 'yaml',
-  'yml': 'yaml',
-  'md': 'markdown',
-  'sh': 'shell',
-  'bash': 'shell',
-  'zsh': 'shell',
-  'sql': 'sql',
-  'graphql': 'graphql',
-  'gql': 'graphql',
-  'sudo': 'sudolang',
-  'sudolang': 'sudolang',
-};
+import { detectLanguageFromFilename } from '@pagespace/lib/utils/language-detection';
 
 function detectLanguageFromTitle(title: string): string {
-  const ext = title.toLowerCase().split('.').pop();
-  if (ext && ext in EXTENSION_MAP) {
-    return EXTENSION_MAP[ext];
-  }
-  return 'plaintext';
+  return detectLanguageFromFilename(title);
 }
 
 const CodePageView = ({ pageId }: CodePageViewProps) => {

apps/web/src/lib/ai/core/__tests__/ai-tools.test.ts

@@ -98,6 +98,12 @@ vi.mock('../../tools/channel-tools', () => ({
   },
 }));
 
+vi.mock('../../tools/github-import-tools', () => ({
+  githubImportTools: {
+    import_from_github: { name: 'import_from_github', description: 'Import from GitHub' },
+  },
+}));
+
 import { pageSpaceTools } from '../ai-tools';
 import { driveTools } from '../../tools/drive-tools';
 import { pageReadTools } from '../../tools/page-read-tools';
@@ -111,6 +117,7 @@ import { activityTools } from '../../tools/activity-tools';
 import { calendarReadTools } from '../../tools/calendar-read-tools';
 import { calendarWriteTools } from '../../tools/calendar-write-tools';
 import { channelTools } from '../../tools/channel-tools';
+import { githubImportTools } from '../../tools/github-import-tools';
 
 describe('ai-tools', () => {
   describe('pageSpaceTools aggregation', () => {
@@ -128,6 +135,7 @@ describe('ai-tools', () => {
         ...calendarReadTools,
         ...calendarWriteTools,
         ...channelTools,
+        ...githubImportTools,
       });
     });
 
@@ -145,6 +153,7 @@ describe('ai-tools', () => {
         Object.keys(calendarReadTools),
         Object.keys(calendarWriteTools),
         Object.keys(channelTools),
+        Object.keys(githubImportTools),
       ];
 
       const allKeys = moduleKeysets.flat();

apps/web/src/lib/ai/core/ai-tools.ts

@@ -10,6 +10,7 @@ import { activityTools } from '../tools/activity-tools';
 import { calendarReadTools } from '../tools/calendar-read-tools';
 import { calendarWriteTools } from '../tools/calendar-write-tools';
 import { channelTools } from '../tools/channel-tools';
+import { githubImportTools } from '../tools/github-import-tools';
 
 /**
  * PageSpace AI Tools - Internal AI SDK tool implementations
@@ -29,6 +30,7 @@ export const pageSpaceTools = {
   ...calendarReadTools,
   ...calendarWriteTools,
   ...channelTools,
+  ...githubImportTools,
 };
 
 export type PageSpaceTools = typeof pageSpaceTools;

apps/web/src/lib/ai/core/tool-filtering.ts

@@ -25,6 +25,8 @@ const WRITE_TOOLS = new Set([
   'update_task',
   // Channel operations
   'send_channel_message',
+  // GitHub import (creates pages)
+  'import_from_github',
 ]);
 
 // Web search tools (excluded when web search is disabled)