implement lightweight IOC/DI framework

- Add annotation system (@Component, @Service, @Configuration, @Bean, @Inject, @Qualifier, @Primary, @Scope, @PostConstruct, @Import, @TimiInjectApplication)
- Implement BeanContext for managing bean instances and definitions
- Implement BeanScanner for component scanning (file system and jar)
- Implement BeanFactory with constructor injection and lifecycle support
- Support @Configuration and @Bean factory methods
- Support @Qualifier and @Primary for multi-implementation
- Support @Scope (singleton/prototype)
- Support @PostConstruct lifecycle callback
- Support @Import and Module extension
- Add circular dependency detection
- Add dependency graph export
- Add demo and test cases

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/test/java/com/imyeyu/inject/demo/UserService.java

@@ -0,0 +1,28 @@
+package com.imyeyu.inject.demo;
+
+import com.imyeyu.inject.annotation.PostConstruct;
+import com.imyeyu.inject.annotation.Service;
+
+/**
+ * 用户服务
+ *
+ * @author 夜雨
+ */
+@Service
+public class UserService {
+
+    private final UserRepository repository;
+
+    public UserService(UserRepository repository) {
+        this.repository = repository;
+    }
+
+    @PostConstruct
+    public void init() {
+        System.out.println("UserService initialized");
+    }
+
+    public String hello() {
+        return "Hello from UserService! Repository: " + repository.getClass().getSimpleName();
+    }
+}