feat: Spring 风格 DI 模块深度优化与框架完善 - #2
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Co-authored-by: traeagent <traeagent@users.noreply.github.com>
- pool.v: 移除泛型闭包包装器修复 C 编译错误，改用 call_factory_voidptr 辅助方法绕过 V 0.5.1 的 !&T 返回类型 bug - app.v: 移除 v.reflection 导入（运行时 panic 的根因），改用 comptime 特性（$if field.typ is Context、$if T !is $interface、field.indirections） - di/builder.v: 同步移除 v.reflection，inject_on 接口检查改用 comptime - middleware/compress.v: 修复 header.get() 结果传播 - examples/example.v: 新增事件监听演示，修复 text() 返回值传播 - README.md: 完整重写，新增 DI、事件系统、会话管理、配置等章节 - checklist.md / tasks.md: 自审全部勾选完成
Co-authored-by: traeagent <traeagent@users.noreply.github.com>
Co-authored-by: traeagent <traeagent@users.noreply.github.com>
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概述
参考 Spring 框架对 DI 模块及整个框架进行深度优化，实现合理的功能、正确的逻辑、易用的 API。
主要变更
DI 模块（Spring 风格重写）
BeanScope枚举（singleton / prototype / request）三作用域BeanDefinition结构（name/type/scope/factory/init/deinit/lazy/primary）Bean结构（definition + instance + initialized 标志）Container提供register_singleton/register_factory/register_lazy/bind_instanceAPIContainer.get[T]带类型校验，不匹配返回明确错误create_request_container()实现 request 作用域子容器隔离Builder/Service/inject_on/get[T]）作为兼容别名框架集成
Application持有独立Container（不再使用全局默认）app.register_singleton/register_factory/register_lazy/bind_instanceContext.di[T]先查 request 容器再查 root 容器handle中受enable_request_scope开关控制创建 request 子容器mount[T]支持接口类型字段注入，去除平台分支，统一C.memcpy指针赋值事件模块（新增
event/）Event接口 +EventListener类型 +EventBus（线程安全 register/emit/off）ServerStartEvent/ServerShutdownEvent/RequestStartEvent/RequestEndEventapp.run()emit ServerStart，graceful_shutdownemit ServerShutdown，每个请求 emit RequestStart/RequestEnd会话优化
SessionStore接口（get/set/delete/exists/gc）MemorySessionStore作为默认内存实现Session持有&MemorySessionStore，所有读写走 storeget过期逻辑（返回空 map 且 exists=false）app.set_session_store可替换存储验证器优化
Required支持 int/i64/u64/f64/boolMin/Max补全 f64 字段分支Number对数值类型直接返回 okvalidate中 rule 解析的 mut 覆盖隐患配置扩展
profile、enable_request_scope、max_request_scope_size字段关键 Bug 修复
v.reflection依赖（运行时array.first: array is empty崩溃的根因），改用 V comptime 特性pool.v泛型闭包导致的 C 编译错误，改用call_factory_voidptr辅助方法绕过 V 0.5.1 的!&T返回类型 bugmiddleware/compress.v中header.get()结果传播文档与示例
examples/example.v演示事件监听与新 DI 用法验证结果
v test .→ 4 passed, 4 totalv build-module .→ 成功v -W build-module examples/example.v→ 无错误无警告测试覆盖
di_test.v：singleton / prototype / lazy / 接口绑定 / 类型校验 / request 隔离 / 父容器委托 / has-remove-clear / 兼容 inject_on / factory singletonevent_test.v：基本注册分发 / 多监听器 / off / off_all / 内置事件 / emit 内置事件 / 无监听器 / 监听器错误传播validate_test.v：required int/f64/bool / number int / min-max f64 / 未知验证器pool_test.v：对象池 acquire/release 回收复用