feat(ci): add Lighthouse CI configuration

lighthouserc.json

@@ -0,0 +1,20 @@
+{
+  "ci": {
+    "collect": {
+      "startServerCommand": "npm run preview",
+      "url": ["http://localhost:4173/"],
+      "numberOfRuns": 1
+    },
+    "assert": {
+      "preset": "lighthouse:no-pwa",
+      "assertions": {
+        "categories:performance": ["warn", { "minScore": 0.7 }],
+        "categories:accessibility": ["error", { "minScore": 0.9 }],
+        "categories:best-practices": ["warn", { "minScore": 0.8 }]
+      }
+    },
+    "upload": {
+      "target": "temporary-public-storage"
+    }
+  }
+}