Initial production setup with dual-token auth

backend/src/routes/health.ts

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+/**
+ * Health Routes - Server health check
+ */
+
+import { Hono } from 'hono';
+import { cacheService } from '../services/cacheService';
+
+const health = new Hono();
+
+/**
+ * GET /api/health
+ * Basic health check
+ */
+health.get('/', (c) => {
+  return c.json({
+    status: 'ok',
+    timestamp: new Date().toISOString(),
+    uptime: process.uptime(),
+  });
+});
+
+/**
+ * GET /api/health/ready
+ * Readiness check (includes cache connection)
+ */
+health.get('/ready', async (c) => {
+  const checks: Record<string, boolean> = {
+    server: true,
+    cache: false,
+  };
+
+  // Check cache connection
+  try {
+    await cacheService.get('health-check');
+    checks.cache = true;
+  } catch {
+    checks.cache = false;
+  }
+
+  const allHealthy = Object.values(checks).every(Boolean);
+
+  return c.json(
+    {
+      status: allHealthy ? 'ready' : 'degraded',
+      checks,
+      timestamp: new Date().toISOString(),
+    },
+    allHealthy ? 200 : 503
+  );
+});
+
+/**
+ * GET /api/health/live
+ * Liveness check (just confirms server is running)
+ */
+health.get('/live', (c) => {
+  return c.json({
+    status: 'alive',
+    timestamp: new Date().toISOString(),
+  });
+});
+
+export default health;