为模特和线稿设置性别

修改设置模特会增多问题
模型更换
设置可以切换男女兼容
TODO：扣除积分价格
转产品图模型未完成

src/main/java/com/ai/da/common/constant/ModelConstants.java

@@ -0,0 +1,42 @@
+package com.ai.da.common.constant;
+
+/**
+ * 模型相关常量类
+ * 用于存放 chooseModelAndPrompt 方法中的字符串常量
+ */
+public class ModelConstants {
+
+    // 类型常量
+    public static final String PRINTBOARD = "Printboard";
+    public static final String MOODBOARD = "Moodboard";
+    public static final String SKETCHBOARD = "Sketchboard";
+
+    // 模型级别常量
+    public static final String ADVANCED = "advanced";
+    public static final String HIGH = "high";
+    public static final String NORMAL = "normal";
+
+    // 模型名称常量
+    public static final String PRINTBOARD_ADVANCED_T2I = "qwen-image";
+    public static final String MOODBOARD_ADVANCED = "doubao-seedream-3-0-t2i-250415";
+    public static final String PRINTBOARD_HIGH_T2I = "doubao-seedream-3-0-t2i-250415";
+    public static final String PRINTBOARD_HIGH_I2I = "doubao-seededit-3-0-i2i-250628";
+    public static final String PRINTBOARD_ADVANCED_I2I = "doubao-seedream-4-0-250828";
+    public static final String IMAGEN_MODEL = "imagen-4.0-generate-001";
+    public static final String NANO_BANANA = "gemini-2.5-flash-image-preview";
+    public static final String LOCAL_MODEL = "local";
+
+    // 风格常量
+    public static final String PAINTING_STYLE = "Painting Style";
+    public static final String ILLUSTRATION_STYLE = "Illustration Style";
+    public static final String REAL_STYLE = "Real Style";
+
+    // 映射键
+    public static final String PROMPT = "prompt";
+    public static final String USE_MODEL = "UseModel";
+
+    // 防止实例化
+    private ModelConstants() {
+        throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
+    }
+}