Fix double support: Parse actual numeric values instead of returning hardcoded 0/0.0

- Fixed MapTypeAdapter.read() in GsonUtil.kt to parse and return actual numeric values
- Previously all JSON numbers were replaced with hardcoded 0 (int) or 0.0 (double)
- Now correctly parses integers to Long and doubles to Double with proper error handling
- Added .intellijPlatform to .gitignore as recommended by build system

Fixes double support functionality in JSON to Dart bean conversion.

Author: iqbalsuperfuture

.gitignore

@@ -2,3 +2,4 @@
 .idea
 .qodana
 build
+.intellijPlatform

src/main/kotlin/com/github/zhangruiyu/flutterjsonbeanfactory/utils/GsonUtil.kt

@@ -120,11 +120,19 @@ object GsonUtil {
                      */
                     val dbNum = `in`.nextString()
                     if (!dbNum.contains(".")) {
-                        //返回0是int
-                        0
+                        // 解析并返回实际的整数值
+                        try {
+                            dbNum.toLong()
+                        } catch (e: NumberFormatException) {
+                            0
+                        }
                     } else {
-                        //返回double类型代表是double类型
-                        0.0
+                        // 解析并返回实际的浮点数值
+                        try {
+                            dbNum.toDouble()
+                        } catch (e: NumberFormatException) {
+                            0.0
+                        }
                     }
                 }