feat: add repository health monitoring endpoint (#9)

gitea-routes.js

@@ -108,6 +108,51 @@ function setupGiteaRoutes(app) {
     res.json({ success: true, message: 'Cache cleared' });
   });
 
+
+  // Repository health check
+  app.get('/api/gitea/health', async (req, res) => {
+    try {
+      const repos = await gitea.getRepos();
+      const health = [];
+      
+      for (const repo of repos) {
+        const updated = new Date(repo.updated_at);
+        const daysSinceUpdate = Math.floor((Date.now() - updated.getTime()) / (1000 * 60 * 60 * 24));
+        
+        let status = 'healthy';
+        if (daysSinceUpdate > 30) status = 'stale';
+        else if (daysSinceUpdate > 7) status = 'inactive';
+        
+        let openPRs = 0;
+        try {
+          const prs = await gitea.getPullRequests(repo.name, 'open');
+          openPRs = prs.length;
+        } catch {}
+        
+        health.push({
+          name: repo.name,
+          status,
+          daysSinceUpdate,
+          updated_at: repo.updated_at,
+          openPRs,
+          html_url: repo.html_url
+        });
+      }
+      
+      res.json({ 
+        repos: health, 
+        summary: { 
+          total: health.length, 
+          healthy: health.filter(r => r.status === 'healthy').length,
+          inactive: health.filter(r => r.status === 'inactive').length,
+          stale: health.filter(r => r.status === 'stale').length
+        } 
+      });
+    } catch (error) {
+      res.status(500).json({ error: error.message });
+    }
+  });
+
   console.log('✅ Gitea integration loaded');
 }