Rebuild the editor as a Vue app: sidebar, pages side by side, tile settings in a drawer (0.2.74)

The page is now web/ (Vue 3 + Vite + TypeScript), built into screen_manager/app/static
with hashed file names; server.py serves index.html as built and /assets/. The Python
API, the data and the firmware are unchanged. Your screens sit in a sidebar, the pages
of a screen stand next to each other at the screen's own shape, the library sits on the
right, and a tile's settings slide in as a drawer while the mockup stays in view. New
screen, Firmware & USB, Alerts, Override YAML and Settings are pages of their own.
Fonts moved to web/src/assets; the tests read the source through tests/editor_sources.py.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

web/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "esp-screens-editor",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "rm -rf ../screen_manager/app/static/assets && vite build",
+    "check": "vue-tsc --noEmit",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "vue": "^3.5.18"
+  },
+  "devDependencies": {
+    "@vitejs/plugin-vue": "^6.0.1",
+    "typescript": "^5.9.2",
+    "vite": "^7.1.5",
+    "vue-tsc": "^3.0.6"
+  }
+}