Fix hanime-cdn relative path prefixing and stale vidara test

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MUYdCh2nCVsQYgJAT7gwSi

src/proxies/hanimecdn.rs

@@ -12,8 +12,16 @@ fn normalize_image_url(endpoint: &str) -> String {
         endpoint.to_string()
     } else if endpoint.starts_with("hanime-cdn.com/") || endpoint == "hanime-cdn.com" {
         format!("https://{endpoint}")
-    } else {
+    } else if endpoint
+        .split('/')
+        .next()
+        .is_some_and(|first| first.contains('.'))
+    {
+        // `other-host.tld/path`: the caller already supplied a host.
         format!("https://{endpoint}")
+    } else {
+        // Site-relative path such as `images/covers/x.png`.
+        format!("https://hanime-cdn.com/{endpoint}")
     }
 }
 

src/proxies/vidara.rs

@@ -116,9 +116,14 @@ mod tests {
 
     #[test]
     fn normalizes_detail_request_with_path_only() {
-        let (url, video_id) = VidaraProxy::normalize_detail_request("video/1000/demo")
+        let (url, video_id) = VidaraProxy::normalize_detail_request("v/eJ9O4QqG1Ln2")
             .expect("detail request should parse");
-        assert_eq!(url, "https://vidara.so/video/1000/demo");
+        assert_eq!(url, "https://vidara.so/v/eJ9O4QqG1Ln2");
-        assert_eq!(video_id, "1000");
+        assert_eq!(video_id, "eJ9O4QqG1Ln2");
+    }
+
+    #[test]
+    fn rejects_paths_outside_the_embed_route() {
+        assert!(VidaraProxy::normalize_detail_request("video/1000/demo").is_none());
     }
 }