Fix BooruRipper "URI is not absolute" error for gelbooru #2115 (#2147)

- Replace problematic URI creation in getGID() method with direct string processing
- Fixes "URISyntaxException: URI is not absolute" when processing gelbooru URLs
- Maintains compatibility with xbooru which was already working
- Improves error logging with more context

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <[email protected]>

Author: hu-qi

src/main/java/com/rarchives/ripme/ripper/rippers/BooruRipper.java

@@ -99,9 +99,11 @@ private String getTerm(URL url) throws MalformedURLException {
     @Override
     public String getGID(URL url) throws MalformedURLException {
         try {
-            return Utils.filesystemSafe(new URI(getTerm(url).replaceAll("&tags=", "")).getPath());
-        } catch (URISyntaxException ex) {
-            logger.error(ex);
+            // Get the search term and make it filesystem safe
+            String term = getTerm(url).replaceAll("&tags=", "");
+            return Utils.filesystemSafe(term);
+        } catch (Exception ex) {
+            logger.error("Error getting GID from URL: " + url, ex);
         }
 
         throw new MalformedURLException("Expected xbooru.com URL format: " + getHost() + ".com/index.php?tags=searchterm - got " + url + " instead");