feat: add file upload size limit with friendly error messages (#366)

- Add file upload size validation with user-friendly error messages
- Implement HandshakeController to communicate size limits to frontend
- Add GlobalExceptionHandler for handling file size exceeded errors
- Update FileTransferForm to show clear size limit warnings
- Add bilingual documentation for file upload configuration
- Support both English and Chinese error messages

Signed-off-by: jiangpeng <949474720@qq.com>

Author: SpursJiang

.gitignore

@@ -8,6 +8,8 @@ gradle-app.setting
 
 .idea
 .vscode/
+.qoder/
+.cursor/
 **/node_modules/
 **/tmp/
 

analysis/gc-log/src/main/java/org/eclipse/jifa/gclog/parser/AbstractPreUnifiedGCLogParser.java

@@ -449,7 +449,7 @@ private boolean sentenceIsValid(List<GCLogToken> sentence) {
     @Data
     private static class GCLogToken {
         private GCLogTokenType type;
-        private String value; // its corresponding string in original text. Some signs like ',' or '）' may have been removed
+        private String value; // its corresponding string in original text. Some signs like ',' or ')' may have been removed
         private int end;  // index of next character after this token in original text
 
         public GCLogToken(String value, int end) {

analysis/gc-log/src/test/java/org/eclipse/jifa/gclog/TestFragmentedParserToMetrics.java

@@ -55,7 +55,7 @@ public void testAnalyseSpeed() {
                 e.printStackTrace();
             }
             double spendTime = (System.currentTimeMillis() - beginTime) / 1000.;
-            System.out.printf("file %s analysed，%d lines in total，%d metrics produced，duration %fs，%f lines processed per minute，producing %f metrics\n",
+            System.out.printf("file %s analysed, %d lines in total, %d metrics produced, duration %fs, %f lines processed per minute, producing %f metrics\n",
                     file, gclog.size(), result.size(), spendTime, gclog.size()/spendTime*60, result.size()/spendTime*60);
         });
     }