Replace composable with Pinia store for persistent auth state

package-lock.json

@@ -9,10 +9,12 @@
       "version": "1.0.0",
       "hasInstallScript": true,
       "dependencies": {
+        "@pinia/nuxt": "^0.11.2",
         "bcryptjs": "^2.4.3",
         "jsonwebtoken": "^9.0.2",
         "nodemailer": "^7.0.9",
         "nuxt": "^4.1.3",
+        "pinia": "^3.0.3",
         "vue": "^3.5.22"
       },
       "devDependencies": {
@@ -2530,6 +2532,21 @@
         "url": "https://opencollective.com/parcel"
       }
     },
+    "node_modules/@pinia/nuxt": {
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/@pinia/nuxt/-/nuxt-0.11.2.tgz",
+      "integrity": "sha512-CgvSWpbktxxWBV7ModhAcsExsQZqpPq6vMYEe9DexmmY6959ev8ukL4iFhr/qov2Nb9cQAWd7niFDnaWkN+FHg==",
+      "license": "MIT",
+      "dependencies": {
+        "@nuxt/kit": "^3.9.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/posva"
+      },
+      "peerDependencies": {
+        "pinia": "^3.0.3"
+      }
+    },
     "node_modules/@pkgjs/parseargs": {
       "version": "0.11.0",
       "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
@@ -8123,6 +8140,36 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/pinia": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/pinia/-/pinia-3.0.3.tgz",
+      "integrity": "sha512-ttXO/InUULUXkMHpTdp9Fj4hLpD/2AoJdmAbAeW2yu1iy1k+pkFekQXw5VpC0/5p51IOR/jDaDRfRWRnMMsGOA==",
+      "license": "MIT",
+      "dependencies": {
+        "@vue/devtools-api": "^7.7.2"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/posva"
+      },
+      "peerDependencies": {
+        "typescript": ">=4.4.4",
+        "vue": "^2.7.0 || ^3.5.11"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/pinia/node_modules/@vue/devtools-api": {
+      "version": "7.7.7",
+      "resolved": "https://registry.npmjs.org/@vue/devtools-api/-/devtools-api-7.7.7.tgz",
+      "integrity": "sha512-lwOnNBH2e7x1fIIbVT7yF5D+YWhqELm55/4ZKf45R9T8r9dE2AIOy8HKjfqzGsoTHFbWbr337O4E0A0QADnjBg==",
+      "license": "MIT",
+      "dependencies": {
+        "@vue/devtools-kit": "^7.7.7"
+      }
+    },
     "node_modules/pirates": {
       "version": "4.0.7",
       "resolved": "https://registry.npmjs.org/pirates/-/pirates-4.0.7.tgz",