feat: botfights, discover, mobile gamepad, content handler, package config updates

Miscellaneous improvements: botfights manifest, discover page curated
apps, mobile gamepad enhancements, content HTTP handler, package
install config updates, health monitor tweaks, shared content UI,
container specs and image version updates.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

core/archipelago/src/api/handler/content.rs

@@ -119,4 +119,56 @@ impl ApiHandler {
             }
         }
     }
+
+    /// Serve a degraded preview of paid content (blurred image or first 2% of video).
+    pub(super) async fn handle_content_preview(
+        path: &str,
+        config: &Config,
+    ) -> Result<Response<hyper::Body>> {
+        // Path format: /content/{id}/preview
+        let content_id = path
+            .strip_prefix("/content/")
+            .and_then(|s| s.strip_suffix("/preview"))
+            .unwrap_or("");
+
+        if content_id.is_empty() || !is_valid_app_id(content_id) {
+            return Ok(build_response(StatusCode::BAD_REQUEST, "text/plain", hyper::Body::from("Invalid content ID")));
+        }
+
+        match content_server::serve_content_preview(&config.data_dir, content_id).await {
+            Ok(content_server::PreviewResult::FullContent(bytes, mime_type)) => {
+                let len = bytes.len();
+                Ok(Response::builder()
+                    .status(StatusCode::OK)
+                    .header("Content-Type", mime_type)
+                    .header("Content-Length", len.to_string())
+                    .body(hyper::Body::from(bytes))
+                    .unwrap())
+            }
+            Ok(content_server::PreviewResult::BlurPreview(bytes, mime_type)) => {
+                let len = bytes.len();
+                Ok(Response::builder()
+                    .status(StatusCode::OK)
+                    .header("Content-Type", mime_type)
+                    .header("Content-Length", len.to_string())
+                    .header("X-Content-Preview", "blur")
+                    .body(hyper::Body::from(bytes))
+                    .unwrap())
+            }
+            Ok(content_server::PreviewResult::TruncatedPreview(bytes, mime_type, total_size)) => {
+                let len = bytes.len();
+                Ok(Response::builder()
+                    .status(StatusCode::OK)
+                    .header("Content-Type", mime_type)
+                    .header("Content-Length", len.to_string())
+                    .header("X-Content-Preview", "truncated")
+                    .header("X-Content-Total-Size", total_size.to_string())
+                    .body(hyper::Body::from(bytes))
+                    .unwrap())
+            }
+            Ok(content_server::PreviewResult::NotFound) | Err(_) => {
+                Ok(build_response(StatusCode::NOT_FOUND, "text/plain", hyper::Body::from("Preview not available")))
+            }
+        }
+    }
 }