feat: add coolify deployment and meta tracking

tests/deploy.test.ts

@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest';
+import { readFileSync } from 'node:fs';
+
+describe('Coolify and Nixpacks deployment config', () => {
+  it('defines a production start script that binds to all interfaces and PORT', () => {
+    const packageJson = JSON.parse(readFileSync('package.json', 'utf8'));
+
+    expect(packageJson.scripts.start).toContain('astro preview');
+    expect(packageJson.scripts.start).toContain('--host 0.0.0.0');
+    expect(packageJson.scripts.start).toContain('${PORT:-4321}');
+  });
+
+  it('pins Nixpacks install, build, and start commands for Coolify', () => {
+    const nixpacks = readFileSync('nixpacks.toml', 'utf8');
+
+    expect(nixpacks).toContain('npm ci');
+    expect(nixpacks).toContain('npm run build');
+    expect(nixpacks).toContain('npm run start');
+  });
+});