feat(build): inject build time and version into health endpoint

Vite define injects __BUILD_TIME__ and __BUILD_VERSION__ at build time
so /health returns the exact timestamp and package version of the running
build — useful for verifying deploys without guessing what changed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
     "name": "osit-aether-app-svelte",
-    "version": "3.00.65",
+    "version": "3.00.66",
     "description": "One Sky IT's Aether App created with Svelte, SvelteKit, Tailwind CSS, Lucide, Font Awesome, and Skeleton UI. -Scott Idem",
     "homepage": "https://oneskyit.com/",
     "private": true,

src/app.d.ts

@@ -10,6 +10,9 @@ declare namespace App {
     // interface Platform {}
 }
 
+declare const __BUILD_TIME__: string;
+declare const __BUILD_VERSION__: string;
+
 declare global {
     namespace App {
         interface Platform {}

src/routes/health/+server.ts

@@ -1,16 +1,13 @@
 import { json } from '@sveltejs/kit';
 import type { RequestHandler } from './$types';
 
-/**
- * Health Check Endpoint
- * Used by Docker and Nginx to verify the service is running.
- */
 export const GET: RequestHandler = async () => {
     return json(
         {
             status: 'healthy',
-            timestamp: new Date().toISOString(),
             service: 'aether-app-sveltekit',
+            version: __BUILD_VERSION__,
+            build_time: __BUILD_TIME__,
             node_env: process.env.NODE_ENV || 'development'
         },
         {

vite.config.ts

@@ -1,9 +1,16 @@
 import { defineConfig } from 'vite';
 import { sveltekit } from '@sveltejs/kit/vite';
 import tailwindcss from '@tailwindcss/vite';
+import { readFileSync } from 'fs';
+
+const pkg = JSON.parse(readFileSync('./package.json', 'utf-8'));
 
 export default defineConfig({
     cacheDir: 'node_modules/.vite',
+    define: {
+        __BUILD_TIME__: JSON.stringify(new Date().toISOString()),
+        __BUILD_VERSION__: JSON.stringify(pkg.version)
+    },
     plugins: [
         tailwindcss(),
         sveltekit() // <-- Must come after Tailwind