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/DefaultStorage.java

@@ -0,0 +1,17 @@
+package com.imyeyu.inject.demo;
+
+import com.imyeyu.inject.annotation.Component;
+
+/**
+ * 默认存储实现
+ *
+ * @author 夜雨
+ */
+@Component
+public class DefaultStorage implements Storage {
+
+    @Override
+    public void save(String data) {
+        System.out.println("Default save: " + data);
+    }
+}

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

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+package com.imyeyu.inject.demo;
+
+import com.imyeyu.inject.TimiInject;
+import com.imyeyu.inject.annotation.TimiInjectApplication;
+
+/**
+ * 演示应用
+ *
+ * @author 夜雨
+ */
+@TimiInjectApplication("com.imyeyu.inject.demo")
+public class DemoApp {
+
+    public static void main(String[] args) {
+        TimiInject inject = TimiInject.run(DemoApp.class);
+
+        UserService userService = inject.di(UserService.class);
+        System.out.println(userService.hello());
+
+        String appName = inject.di("appName", String.class);
+        System.out.println("App Name: " + appName);
+
+        Storage storage = inject.di(Storage.class);
+        System.out.println("Storage: " + storage.getClass().getSimpleName());
+
+        System.out.println("\n=== Dependency Graph ===");
+        System.out.println(inject.exportDependencyGraph());
+    }
+}

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

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+package com.imyeyu.inject.demo;
+
+import com.imyeyu.inject.annotation.Bean;
+import com.imyeyu.inject.annotation.Configuration;
+
+/**
+ * 演示配置
+ *
+ * @author 夜雨
+ */
+@Configuration
+public class DemoConfig {
+
+    @Bean("appName")
+    public String appName() {
+        return "timi-inject-demo";
+    }
+
+    @Bean
+    public Integer serverPort() {
+        return 8080;
+    }
+}

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

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+package com.imyeyu.inject.demo;
+
+import com.imyeyu.inject.annotation.Component;
+import com.imyeyu.inject.annotation.Primary;
+
+/**
+ * 快速存储实现
+ *
+ * @author 夜雨
+ */
+@Component
+@Primary
+public class FastStorage implements Storage {
+
+    @Override
+    public void save(String data) {
+        System.out.println("Fast save: " + data);
+    }
+}

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

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+package com.imyeyu.inject.demo;
+
+import com.imyeyu.inject.TimiInject;
+import com.imyeyu.inject.annotation.Component;
+import com.imyeyu.inject.annotation.PostConstruct;
+import com.imyeyu.inject.annotation.Service;
+import com.imyeyu.inject.annotation.TimiInjectApplication;
+
+/**
+ * 快速测试
+ *
+ * @author 夜雨
+ */
+public class QuickTest {
+
+    @TimiInjectApplication("com.imyeyu.inject.demo")
+    public static class TestApp {
+    }
+
+    @Service
+    public static class TestService {
+        private boolean initialized = false;
+
+        @PostConstruct
+        public void init() {
+            this.initialized = true;
+            System.out.println("TestService initialized");
+        }
+
+        public boolean isInitialized() {
+            return initialized;
+        }
+    }
+
+    public static void main(String[] args) {
+        System.out.println("=== Timi-Inject Quick Test ===\n");
+
+        TimiInject inject = TimiInject.run(TestApp.class);
+
+        System.out.println("\n=== Test 1: Simple DI ===");
+        UserRepository repo = inject.di(UserRepository.class);
+        System.out.println("UserRepository: " + (repo != null ? "OK" : "FAIL"));
+
+        System.out.println("\n=== Test 2: Constructor Injection ===");
+        UserService service = inject.di(UserService.class);
+        System.out.println("UserService: " + service.hello());
+
+        System.out.println("\n=== Test 3: @Bean Method ===");
+        String appName = inject.di("appName", String.class);
+        System.out.println("AppName: " + appName);
+
+        Integer port = inject.di("serverPort", Integer.class);
+        System.out.println("ServerPort: " + port);
+
+        System.out.println("\n=== Test 4: @Primary ===");
+        Storage storage = inject.di(Storage.class);
+        System.out.println("Storage type: " + storage.getClass().getSimpleName());
+        System.out.println("Expected FastStorage: " + (storage instanceof FastStorage ? "OK" : "FAIL"));
+
+        System.out.println("\n=== Test 5: Manual Registration ===");
+        inject.ioc("customBean", "Custom Value");
+        String custom = inject.di("customBean", String.class);
+        System.out.println("Custom bean: " + custom);
+
+        System.out.println("\n=== All Tests Passed! ===");
+    }
+}

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

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+package com.imyeyu.inject.demo;
+
+/**
+ * 存储接口
+ *
+ * @author 夜雨
+ */
+public interface Storage {
+    void save(String data);
+}

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

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+package com.imyeyu.inject.demo;
+
+import com.imyeyu.inject.annotation.Resources;
+
+/**
+ * 用户仓储
+ *
+ * @author 夜雨
+ */
+@Resources
+public class UserRepository {
+
+    public UserRepository() {
+        System.out.println("UserRepository created");
+    }
+}

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

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+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();
+    }
+}