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>

.gitignore

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+/.claude
+/CLAUDE.md
+/AGENTS.md
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 target/
 !.mvn/wrapper/maven-wrapper.jar
 !**/src/main/**/target/