feat(agents-desktop): Electric Cloud onboarding + agent-servers shape

.changeset/agents-desktop-cloud-auth.md

@@ -0,0 +1,10 @@
+---
+'@electric-ax/agents-desktop': patch
+'@electric-ax/agents-server': patch
+'@electric-ax/agents-server-ui': patch
+'@electric-ax/agents': patch
+---
+
+Add Electric Cloud sign-in to the desktop app. New Settings → Account panel signs in via GitHub or Google through `dashboard.electric-sql.cloud`'s loopback OAuth flow (the same one the CLI uses), encrypts the resulting JWT with `safeStorage`, refreshes name + workspaces via `auth.whoami`, and offers a one-click jump to the user's Electric Cloud dashboard.
+
+Add first-launch onboarding for Electric Cloud sign-in and LLM API keys, plus a Cloud Agent Servers settings section that syncs the user's Cloud agent servers, mints per-tenant agents tokens in the main process, and connects the desktop runtime/UI to tenant-scoped Cloud agents URLs without exposing those tokens to the renderer or `settings.json`.

packages/agents-desktop/package.json

@@ -10,7 +10,7 @@
   "main": "./dist/main.cjs",
   "scripts": {
     "build": "pnpm --filter @electric-ax/agents build && pnpm --filter @electric-ax/agents-server-ui build:desktop && vite build",
-    "dev": "pnpm --filter @electric-ax/agents build && pnpm run ensure:electron && concurrently -k -n ui,desktop -c cyan,green \"pnpm run dev:ui\" \"pnpm run dev:desktop\"",
+    "dev": "pnpm run ensure:electron && concurrently -k -n ui,desktop -c cyan,green \"pnpm run dev:ui\" \"pnpm run dev:desktop\"",
     "dev:ui": "pnpm --filter @electric-ax/agents-server-ui dev:desktop",
     "dev:desktop": "wait-on -d 200 http-get://localhost:5183 && vite",
     "build:icons": "node scripts/build-icons.mjs",
@@ -26,13 +26,15 @@
     "typecheck": "tsc --noEmit"
   },
   "dependencies": {
+    "@electric-sql/client": "^1.5.15",
     "@mixmark-io/domino": "^2.2.0",
     "better-sqlite3": "^12.9.0",
     "jsdom": "^28.1.0",
     "pino": "^10.3.1",
     "pino-pretty": "^13.0.0",
     "sqlite-vec": "^0.1.9",
-    "turndown-plugin-gfm": "^1.0.2"
+    "turndown-plugin-gfm": "^1.0.2",
+    "undici": "^7.24.7"
   },
   "devDependencies": {
     "@electric-ax/agents": "workspace:*",