Migrate all pattern docs to spec/ + design/ split

AGENTS.md

@@ -115,7 +115,7 @@ dotnet test DesignPatterns.slnx -c Release
 | State（M1–M2） | `ITransitionTable`、`[StateMachine]`、`[Transition]` | `StateTransitionGenerator` |
 | DI Health Checks | `AddDesignPatternsHealthChecks`、`IHealthCheck` | —（运行时扩展） |
 
-模式文档：[docs/Strategy.md](docs/Strategy.md)、[docs/ChainOfResponsibility.md](docs/ChainOfResponsibility.md)、[docs/Composite.md](docs/Composite.md)、[docs/FactoryRegistry.md](docs/FactoryRegistry.md)、[docs/Decorator.md](docs/Decorator.md)、[docs/EventAggregator.md](docs/EventAggregator.md)、[docs/FactoryKeyConventions.md](docs/FactoryKeyConventions.md)、[docs/StateTransitionTable.md](docs/StateTransitionTable.md)。设计提案见 [docs/rfc/](docs/rfc/README.md)，架构决策见 [docs/adr/](docs/adr/README.md)。
+模式文档：Spec（稳定契约）见 [docs/spec/](docs/spec/README.md)，Design Doc（实现细节）见 [docs/design/](docs/design/README.md)。横切约定见 [docs/FactoryKeyConventions.md](docs/FactoryKeyConventions.md)。设计提案见 [docs/rfc/](docs/rfc/README.md)，架构决策见 [docs/adr/](docs/adr/README.md)。
 
 ---
 
@@ -339,9 +339,9 @@ git push origin v0.1.0-preview3
 | CHANGELOG | 在 `[Unreleased]` 下添加条目 |
 | 文档目录 | 不在 `docs/` 之外创建文档文件（`.Local/` 除外） |
 
-### 现有模式文档迁移
+### 模式文档结构
 
-现有 `docs/<PatternName>.md`（Strategy.md、Composite.md 等）将逐步拆分迁移至 `docs/spec/` + `docs/design/`。迁移计划见 [docs/spec/README.md](docs/spec/README.md)。迁移可逐模式进行，不要求一次性完成。
+所有模式文档已拆分为 Spec（`docs/spec/`）+ Design Doc（`docs/design/`）。Spec 描述稳定契约（API 面、诊断 ID、不变量），Design Doc 描述实现细节（设计权衡、已知局限）。索引见 [docs/spec/README.md](docs/spec/README.md) 和 [docs/design/README.md](docs/design/README.md)。
 
 ---
 

README.md

@@ -88,13 +88,8 @@ DesignPatterns.slnx
 | [docs/DEVELOPMENT.md](docs/DEVELOPMENT.md) | 环境、构建、测试、架构约定 |
 | [docs/PUBLISHING.md](docs/PUBLISHING.md) | NuGet 发版流程 |
 | [docs/FactoryKeyConventions.md](docs/FactoryKeyConventions.md) | Strategy / Factory key 命名约定 |
-| [docs/Strategy.md](docs/Strategy.md) | Strategy 模式设计与 API |
-| [docs/ChainOfResponsibility.md](docs/ChainOfResponsibility.md) | 责任链模式设计与 API |
-| [docs/Composite.md](docs/Composite.md) | Composite 模式设计与 API |
-| [docs/FactoryRegistry.md](docs/FactoryRegistry.md) | Factory Registry 模式设计与 API |
-| [docs/Decorator.md](docs/Decorator.md) | Decorator 模式设计与 API |
-| [docs/EventAggregator.md](docs/EventAggregator.md) | Event Aggregator 模式设计与 API |
-| [docs/StateTransitionTable.md](docs/StateTransitionTable.md) | State 转换表设计与 API |
+| [docs/spec/](docs/spec/README.md) | 模式规范（Spec）— 稳定契约：API 面、诊断 ID、不变量 |
+| [docs/design/](docs/design/README.md) | 模式设计文档（Design Doc）— 实现细节、设计权衡、已知局限 |
 | [docs/ROADMAP.md](docs/ROADMAP.md) | 功能与技术 backlog |
 | [CONTRIBUTING.md](CONTRIBUTING.md) | 贡献与测试说明 |
 | [AGENTS.md](AGENTS.md) | AI 编码助手项目上下文 |

docs/DOCUMENTATION.md

@@ -403,25 +403,25 @@ docs/
     └── PluginAssemblies.md
 ```
 
-### 8.1 现有模式文档的迁移
+### 8.1 现有模式文档的迁移（已完成）
 
-现有 `docs/<PatternName>.md`（Strategy.md、Composite.md 等）将逐步拆分迁移至 `docs/spec/` + `docs/design/`：
+所有 7 个模式文档已从 `docs/<PatternName>.md` 拆分迁移至 `docs/spec/` + `docs/design/`：
 
-| 现有文件 | 迁移目标 |
-|----------|----------|
-| `docs/Strategy.md` | `docs/spec/Strategy.md` + `docs/design/Strategy.md` |
-| `docs/ChainOfResponsibility.md` | `docs/spec/ChainOfResponsibility.md` + `docs/design/ChainOfResponsibility.md` |
-| `docs/Composite.md` | `docs/spec/Composite.md` + `docs/design/Composite.md` |
-| `docs/FactoryRegistry.md` | `docs/spec/FactoryRegistry.md` + `docs/design/FactoryRegistry.md` |
-| `docs/Decorator.md` | `docs/spec/Decorator.md` + `docs/design/Decorator.md` |
-| `docs/EventAggregator.md` | `docs/spec/EventAggregator.md` + `docs/design/EventAggregator.md` |
-| `docs/StateTransitionTable.md` | `docs/spec/StateTransitionTable.md` + `docs/design/StateTransitionTable.md` |
+| 原文件 | Spec | Design Doc |
+|--------|------|------------|
+| `docs/Strategy.md` | `docs/spec/Strategy.md` | `docs/design/Strategy.md` |
+| `docs/ChainOfResponsibility.md` | `docs/spec/ChainOfResponsibility.md` | `docs/design/ChainOfResponsibility.md` |
+| `docs/Composite.md` | `docs/spec/Composite.md` | `docs/design/Composite.md` |
+| `docs/FactoryRegistry.md` | `docs/spec/FactoryRegistry.md` | `docs/design/FactoryRegistry.md` |
+| `docs/Decorator.md` | `docs/spec/Decorator.md` | `docs/design/Decorator.md` |
+| `docs/EventAggregator.md` | `docs/spec/EventAggregator.md` | `docs/design/EventAggregator.md` |
+| `docs/StateTransitionTable.md` | `docs/spec/StateTransitionTable.md` | `docs/design/StateTransitionTable.md` |
 
 迁移遵循以下规则：
 - **API 面、诊断 ID 表、不变量、兼容基线** → Spec
 - **实现概览、设计权衡、与生态边界、已知局限、示例** → Design Doc
 - 横切约定文档（`FactoryKeyConventions.md`、`AppSettings.md` 等）保留在 `docs/` 根目录，不迁移。
-- 迁移可逐模式进行，不要求一次性完成。迁移时创建一个独立 PR。
+- 旧文件已删除。
 
 ---