Add Windows 7 deploy bundle pipeline

Self-contained zip (dist/avtoambor-deploy.zip) for end users on Windows 7:
double-click install.bat to install Node 16, then start.bat to launch the
server. start.bat self-relaunches minimized so the console window stays out
of the way. Node is pinned to 16.x and several deps downgraded for Win7
compatibility; the unsupported View Transitions hook is dropped from the
root layout. make bundle wraps scripts/make-bundle.sh.

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

package.json

@@ -3,6 +3,9 @@
   "version": "0.1.0",
   "private": true,
   "type": "module",
+  "engines": {
+    "node": "16.x"
+  },
   "scripts": {
     "dev": "vite dev --host 0.0.0.0 --port 3000",
     "build": "vite build",
@@ -11,12 +14,13 @@
     "db:init": "node scripts/init-db.js"
   },
   "devDependencies": {
-    "@sveltejs/adapter-node": "^5.2.0",
-    "@sveltejs/kit": "^2.5.0",
-    "svelte": "^4.2.0",
-    "vite": "^5.2.0"
+    "@sveltejs/adapter-node": "1.3.1",
+    "@sveltejs/kit": "1.30.4",
+    "@sveltejs/vite-plugin-svelte": "2.5.3",
+    "svelte": "4.2.19",
+    "vite": "4.5.5"
   },
   "dependencies": {
-    "better-sqlite3": "^11.3.0"
+    "better-sqlite3": "7.6.2"
   }
 }