chore(frontend): introduce prettier + eslint and prune unused code

- Add Prettier 3 with prettier-plugin-organize-imports (sorts/removes unused imports)
- Add ESLint 10 flat config with typescript-eslint + eslint-plugin-vue + eslint-config-prettier
- Add root scripts: format, format:check, lint, lint:fix
- Reformat 257 files across admin-web, ops-web, desktop-client, packages
- Remove unused locals/exports flagged by --noUnusedLocals/--noUnusedParameters
- Fix duplicate localTabLabel key, surrogate-pair regex u-flag, NBSP literal in regex
- Skip server/ (Go) and apps/browser-extension/ (deprecated per ADR)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/desktop-client/electron.vite.config.ts

@@ -1,28 +1,28 @@
-import { resolve } from "node:path";
-import { fileURLToPath } from "node:url";
+import { resolve } from 'node:path'
+import { fileURLToPath } from 'node:url'
 
-import vue from "@vitejs/plugin-vue";
-import { defineConfig, externalizeDepsPlugin } from "electron-vite";
-import Components from "unplugin-vue-components/vite";
-import { AntDesignVueResolver } from "unplugin-vue-components/resolvers";
+import vue from '@vitejs/plugin-vue'
+import { defineConfig, externalizeDepsPlugin } from 'electron-vite'
+import { AntDesignVueResolver } from 'unplugin-vue-components/resolvers'
+import Components from 'unplugin-vue-components/vite'
 
-const rootDir = fileURLToPath(new URL(".", import.meta.url));
+const rootDir = fileURLToPath(new URL('.', import.meta.url))
 
 const workspacePackages = [
-  "@geo/shared-types",
-  "@geo/http-client",
-  "@geo/publisher-platforms",
-  "@geo/ui-shared",
-];
+  '@geo/shared-types',
+  '@geo/http-client',
+  '@geo/publisher-platforms',
+  '@geo/ui-shared',
+]
 
 const workspaceAliases = {
-  "@geo/shared-types": resolve(rootDir, "../../packages/shared-types/src/index.ts"),
-  "@geo/http-client": resolve(rootDir, "../../packages/http-client/src/index.ts"),
-  "@geo/publisher-platforms": resolve(rootDir, "../../packages/publisher-platforms/src/index.ts"),
-  "@geo/ui-shared": resolve(rootDir, "../../packages/ui-shared/src/index.ts"),
-  "@geo/ui-shared/tokens": resolve(rootDir, "../../packages/ui-shared/src/tokens/index.ts"),
-  "@geo/ui-shared/tokens.css": resolve(rootDir, "../../packages/ui-shared/src/tokens/index.css"),
-};
+  '@geo/shared-types': resolve(rootDir, '../../packages/shared-types/src/index.ts'),
+  '@geo/http-client': resolve(rootDir, '../../packages/http-client/src/index.ts'),
+  '@geo/publisher-platforms': resolve(rootDir, '../../packages/publisher-platforms/src/index.ts'),
+  '@geo/ui-shared': resolve(rootDir, '../../packages/ui-shared/src/index.ts'),
+  '@geo/ui-shared/tokens': resolve(rootDir, '../../packages/ui-shared/src/tokens/index.ts'),
+  '@geo/ui-shared/tokens.css': resolve(rootDir, '../../packages/ui-shared/src/tokens/index.css'),
+}
 
 export default defineConfig({
   main: {
@@ -30,18 +30,18 @@ export default defineConfig({
     build: {
       rollupOptions: {
         input: {
-          bootstrap: resolve(rootDir, "src/main/bootstrap.ts"),
+          bootstrap: resolve(rootDir, 'src/main/bootstrap.ts'),
         },
         output: {
-          format: "cjs",
-          entryFileNames: "[name].cjs",
-          chunkFileNames: "[name]-[hash].cjs",
+          format: 'cjs',
+          entryFileNames: '[name].cjs',
+          chunkFileNames: '[name]-[hash].cjs',
         },
       },
     },
     resolve: {
       alias: {
-        "@main": resolve(rootDir, "src/main"),
+        '@main': resolve(rootDir, 'src/main'),
         ...workspaceAliases,
       },
     },
@@ -51,18 +51,18 @@ export default defineConfig({
     build: {
       rollupOptions: {
         input: {
-          bridge: resolve(rootDir, "src/preload/bridge.ts"),
+          bridge: resolve(rootDir, 'src/preload/bridge.ts'),
         },
         output: {
-          format: "cjs",
-          entryFileNames: "[name].cjs",
-          chunkFileNames: "[name]-[hash].cjs",
+          format: 'cjs',
+          entryFileNames: '[name].cjs',
+          chunkFileNames: '[name]-[hash].cjs',
         },
       },
     },
     resolve: {
       alias: {
-        "@preload": resolve(rootDir, "src/preload"),
+        '@preload': resolve(rootDir, 'src/preload'),
         ...workspaceAliases,
       },
     },
@@ -81,9 +81,9 @@ export default defineConfig({
     ],
     resolve: {
       alias: {
-        "@renderer": resolve(rootDir, "src/renderer"),
+        '@renderer': resolve(rootDir, 'src/renderer'),
         ...workspaceAliases,
       },
     },
   },
-});
+})