feat: 优化代码生成及文案模板渲染

ruoyi-office/src/main/resources/mapper/office/TtProjectInfoMapper.xml

@@ -125,6 +125,13 @@
         where id = #{id}
     </update>
 
+    <update id="updateProjectNumIfBlank">
+        update tt_project_info
+        set project_num = #{projectNum}
+        where id = #{id}
+          and (project_num is null or trim(project_num) = '')
+    </update>
+
     <delete id="deleteTtProjectInfoById" parameterType="Integer">
         delete from tt_project_info where id = #{id}
     </delete>