Enable KeyStatic CMS for production

Changes:
- Added Netlify adapter for server-side rendering
- Changed output mode from static to server
- Updated KeyStatic storage from local to GitHub
- Removed SKIP_KEYSTATIC from Netlify build
- KeyStatic Admin UI will be available at /keystatic

Features:
- Server-side rendering with Netlify Functions
- GitHub integration for content management
- Production-ready KeyStatic Admin UI

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

.netlify/build/chunks/0fef68bcca4de66faed712b9f02c66dd-300x300_HMQXZI0I.mjs

@@ -0,0 +1,14 @@
+const _0fef68bcca4de66faed712b9f02c66dd300x300 = new Proxy({"src":"/_astro/0fef68bcca4de66faed712b9f02c66dd-300x300.BJ5Zf9Kx.jpg","width":300,"height":300,"format":"jpg"}, {
+						get(target, name, receiver) {
+							if (name === 'clone') {
+								return structuredClone(target);
+							}
+							if (name === 'fsPath') {
+								return "/Users/bugracanata/Developer/[Telsiz]/ARC-Web-Sitesi/src/assets/images/2025/01/0fef68bcca4de66faed712b9f02c66dd-300x300.jpg";
+							}
+							
+							return target[name];
+						}
+					});
+
+export { _0fef68bcca4de66faed712b9f02c66dd300x300 as default };