chore(build): adopt Vite, pnpm, ESLint flat config; drop Vue CLI

Replaces Vue CLI 4 with Vite 7 + @tailwindcss/vite + vite-plugin-pwa,
yarn with pnpm, tslint with ESLint 9 flat config, and Jest with Vitest.
Drops Netlify deploy config and the dead FontAwesome npm token.

Bumps the entire dependency surface: Vue 3.5, Pinia 2, vue-router 4,
vue-i18n 11, Tailwind 4, DaisyUI 5, TypeScript 5.7, axios 1.x,
mapbox-gl 3.x, date-fns 4.x, uuid 11.x, pouchdb-browser 9.x.

eslint.config.js

@@ -0,0 +1,29 @@
+import pluginVue from 'eslint-plugin-vue'
+import vueTsConfig from '@vue/eslint-config-typescript'
+
+export default [
+  {
+    ignores: [
+      'dist/**',
+      'node_modules/**',
+      'src-legacy/**',
+      'dev/**',
+      'src/utils/smtp.js'
+    ]
+  },
+  ...pluginVue.configs['flat/recommended'],
+  ...vueTsConfig(),
+  {
+    rules: {
+      'vue/multi-word-component-names': 'off',
+      'vue/max-attributes-per-line': 'off',
+      'vue/singleline-html-element-content-newline': 'off',
+      'vue/html-self-closing': 'off',
+      'vue/attributes-order': 'off',
+      'vue/first-attribute-linebreak': 'off',
+      'vue/no-mutating-props': 'warn',
+      '@typescript-eslint/no-explicit-any': 'warn',
+      '@typescript-eslint/no-unused-vars': ['warn', { argsIgnorePattern: '^_' }]
+    }
+  }
+]