refactor: 架构重组 — doc/bot → core/infra，新增 Agent 调度模块

- src/doc/ 拆分为 src/core/extraction/, matching/, validation/（核心业务逻辑）
- src/bot/ 重命名为 src/infra/browser/（浏览器自动化基础设施）
- fill_consumable_doc.py → src/infra/documents/consumable.py
- 新增 Agent 调度模块：coordinator.py, events.py, session.py，重构 orchestrator.py
- 更新 AGENTS.md、README.md 及所有子目录 README

pyproject.toml

@@ -38,10 +38,6 @@ warn_return_any = true
 warn_unused_configs = true
 ignore_missing_imports = true
 
-[[tool.mypy.overrides]]
-module = "tests.*"
-ignore_errors = true
-
 [tool.deptry]
 ignore_notebooks = true