Fix PGN parser: move extraction and Event header value

pgn-parser.js

@@ -21,8 +21,8 @@ function parseGameBlock(block) {
 
         // Der Event-Header fehlt, weil wir danach splitten – extrahiere ihn aus dem Blockanfang
         const eventEnd = block.indexOf('"]');
-        if (eventEnd > 0) {
-            headers.Event = block.substring(0, eventEnd);
+        if (eventEnd > 1) {
+            headers.Event = block.substring(1, eventEnd);
         }
 
         const headerRegex = /^\s*\[(\w+)\s+"([^"]*)"\]/gm;
@@ -35,7 +35,7 @@ function parseGameBlock(block) {
         }
         
         // Extract moves - everything after the last header
-        const lastHeaderEnd = block.lastIndexOf(']"');
+        const lastHeaderEnd = block.lastIndexOf('"]');
         let movesText = lastHeaderEnd > -1 ? block.substring(lastHeaderEnd + 2).trim() : '';
         
         // Remove comments from moves for cleaner parsing