M1: implement operational core

Demo auth, seed import/reset, dashboard, vehicle/booking list+detail, audit trail. Backend: 19 tests passing, ruff clean. Frontend: React Router shell, typed API client, responsive pages. Verified end-to-end via curl and browser.

frontend/package-lock.json

@@ -9,7 +9,8 @@
       "version": "0.0.1",
       "dependencies": {
         "react": "18.3.1",
-        "react-dom": "18.3.1"
+        "react-dom": "18.3.1",
+        "react-router-dom": "7.18.2"
       },
       "devDependencies": {
         "@types/react": "18.3.12",
@@ -1326,6 +1327,19 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cookie": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-1.1.1.tgz",
+      "integrity": "sha512-ei8Aos7ja0weRpFzJnEA9UHJ/7XQmqglbRwnf2ATjcB9Wq874VKH9kfjjirM6UhU2/E5fFYadylyhFldcqSidQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
     "node_modules/csstype": {
       "version": "3.2.3",
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
@@ -1593,6 +1607,44 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/react-router": {
+      "version": "7.18.2",
+      "resolved": "https://registry.npmjs.org/react-router/-/react-router-7.18.2.tgz",
+      "integrity": "sha512-aUVMjFm3GAPTTZL7oYr5E7ETiqfQCHRLH+B+5afnICvf0r7kkK4eR6SMuwbSTJw/7t+12khT/Kahij49fqOCIg==",
+      "license": "MIT",
+      "dependencies": {
+        "cookie": "^1.0.1",
+        "set-cookie-parser": "^2.6.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-router-dom": {
+      "version": "7.18.2",
+      "resolved": "https://registry.npmjs.org/react-router-dom/-/react-router-dom-7.18.2.tgz",
+      "integrity": "sha512-AIKJ/jgGlFb3EbfCXk5Gzshiwt+l3mqbCrNjmEWMMjqQxNJ3svBa6bgzFyCC2Sw3RA0VWF1kg3uQf2OFhxb8hw==",
+      "license": "MIT",
+      "dependencies": {
+        "react-router": "7.18.2"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      }
+    },
     "node_modules/rollup": {
       "version": "4.62.4",
       "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.62.4.tgz",
@@ -1658,6 +1710,12 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/set-cookie-parser": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/set-cookie-parser/-/set-cookie-parser-2.7.2.tgz",
+      "integrity": "sha512-oeM1lpU/UvhTxw+g3cIfxXHyJRc/uidd3yK1P242gzHds0udQBYzs3y8j4gCCW+ZJ7ad0yctld8RYO+bdurlvw==",
+      "license": "MIT"
+    },
     "node_modules/source-map-js": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",