feat: 初始化项目结构和配置- 创建 Maven 项目配置文件 pom.xml

- 添加 Spring Boot 相关依赖
- 创建项目启动类 PortalApplication
- 配置 .gitignore 文件，忽略IDE和系统产生的临时文件

pom.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>cn.nopj</groupId>
+    <artifactId>chaos_api</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>pom</packaging>
+    <modules>
+        <module>c_portal</module>
+    </modules>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencyManagement>
+        <dependencies>
+            <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-starter-web</artifactId>
+                <version>3.5.3</version>
+            </dependency>
+            <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-autoconfigure -->
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-autoconfigure</artifactId>
+                <version>3.5.3</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+</project>