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/DemoApp.java

@@ -0,0 +1,29 @@
+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());
+    }
+}