feat:use local proxy for media

use local proxy for media so that media doesnt need to be requested from
r2 everytime but can be cached locally. this also fixes some csp issues
ive been having.

src/service-worker.ts

@@ -130,8 +130,8 @@ self.addEventListener('fetch', (event) => {
 			}
 		}
 
-		// Handle R2 resources with cache-first strategy
-		if (url.hostname.includes('.r2.dev') || url.hostname.includes('.r2.cloudflarestorage.com')) {
+		// Handle R2 resources and local media proxy with cache-first strategy
+		if (url.hostname.includes('.r2.dev') || url.hostname.includes('.r2.cloudflarestorage.com') || url.pathname.startsWith('/api/media/')) {
 			const cachedResponse = await r2Cache.match(event.request);
 			if (cachedResponse) {
 				return cachedResponse;
@@ -146,7 +146,7 @@ self.addEventListener('fetch', (event) => {
 				return response;
 			} catch {
 				// Return cached version if available, or fall through to other cache checks
-				return cachedResponse || new Response('R2 resource not available', { status: 404 });
+				return cachedResponse || new Response('Media resource not available', { status: 404 });
 			}
 		}