Initial project setup: Obsidian intelligent journal organizer

- Add core agent architecture with Command + Skill pattern
- Implement Claude API integration for content analysis
- Add Obsidian REST API integration for vault operations
- Create conversational interface (v2.0) with natural language processing
- Add comprehensive configuration management and validation
- Include project documentation and developer guides
- Set up testing framework with unit, integration, and property tests
- Add Kiro specs for Claude API configuration and code quality improvements
- Configure project steering files for development guidelines

conversation/__init__.py

@@ -0,0 +1,21 @@
+"""
+对话模块
+提供对话式 Agent 的核心功能
+"""
+
+from .intent_understanding import IntentUnderstanding, Intent
+from .conversation_state import ConversationState, Message, Task, TaskStatus
+from .response_generator import ResponseGenerator
+from .conversational_agent import ConversationalAgent, ChatResponse
+
+__all__ = [
+    "IntentUnderstanding",
+    "Intent",
+    "ConversationState",
+    "Message",
+    "Task",
+    "TaskStatus",
+    "ResponseGenerator",
+    "ConversationalAgent",
+    "ChatResponse",
+]