Add cache folder to .gitignore, update pgn-parser.js

.gitignore

@@ -0,0 +1 @@
+cache/

pgn-parser.js

@@ -18,7 +18,14 @@ function parsePGN(pgnText) {
 function parseGameBlock(block) {
     try {
         const headers = {};
-        const headerRegex = /^\s*\[(\w+)\s+"([^"]*)"\]/g;
+
+        // 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);
+        }
+
+        const headerRegex = /^\s*\[(\w+)\s+"([^"]*)"\]/gm;
         let match;
         
         // Extract all headers