refactor: extract MAX_FREE_REPOS to config/api.ts, remove duplication

Was hardcoded as 3 in RepoListView.tsx and DashboardHome.tsx.
Now exported from config/api.ts as single source of truth.

Author: DevanshuNEU

frontend/src/components/dashboard/DashboardHome.tsx

@@ -7,7 +7,7 @@ import { AnimatePresence } from 'framer-motion'
 import { toast } from 'sonner'
 import { useAuth } from '../../contexts/AuthContext'
 import { useRepos } from '../../hooks/useCachedQuery'
-import { API_URL } from '../../config/api'
+import { API_URL, MAX_FREE_REPOS } from '../../config/api'
 import { extractErrorMessage, isUpgradeError } from '../../lib/api-errors'
 import { RepoListView } from './RepoListView'
 import { RepoDetailView } from './RepoDetailView'
@@ -208,7 +208,7 @@ export function DashboardHome() {
         isOpen={showGitHubSelector}
         onClose={() => setShowGitHubSelector(false)}
         onImport={handleGitHubImport}
-        maxSelectable={3}
+        maxSelectable={MAX_FREE_REPOS}
         currentRepoCount={repos.length}
       />
 

frontend/src/components/dashboard/RepoListView.tsx

@@ -6,10 +6,9 @@ import { Plus, Github } from 'lucide-react'
 import { Button } from '../ui/button'
 import { RepoList } from '../RepoList'
 import { DashboardStats } from './DashboardStats'
+import { MAX_FREE_REPOS } from '../../config/api'
 import type { Repository } from '../../types'
 
-const MAX_FREE_REPOS = 3
-
 interface RepoListViewProps {
   repos: Repository[]
   loading: boolean

frontend/src/config/api.ts

@@ -57,3 +57,6 @@ export const buildWsUrl = (path: string): string => {
   const cleanPath = path.startsWith('/') ? path : `/${path}`
   return `${WS_URL}${cleanPath}`
 }
+
+// free tier repo limit -- used in dashboard and GitHub import
+export const MAX_FREE_REPOS = 3