feat(layout): finalize p01 and p02 changes

Complete UI foundation and app layout implementation, stabilize container health checks, and archive both OpenSpec changes after verification.

frontend/package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.0.1",
       "dependencies": {
         "@tanstack/table-core": "^8.21.2",
+        "lucide-svelte": "^0.574.0",
         "recharts": "^2.15.1",
         "sveltekit-superforms": "^2.24.0",
         "zod": "^3.24.2"
@@ -4186,6 +4187,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/lucide-svelte": {
+      "version": "0.574.0",
+      "resolved": "https://registry.npmjs.org/lucide-svelte/-/lucide-svelte-0.574.0.tgz",
+      "integrity": "sha512-KhMbh4uFO8jm60bYPWHV5GmNy1P5hs1M6BfDYUjw0CZ5tJoJ+lMzAdTBBb9L+Gj3xOlHIgjsLMVnjQK3qcWrEA==",
+      "license": "ISC",
+      "peerDependencies": {
+        "svelte": "^3 || ^4 || ^5.0.0-next.42"
+      }
+    },
     "node_modules/lz-string": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/lz-string/-/lz-string-1.5.0.tgz",