Initial commit: Egregore db service

PostgreSQL message storage API with asyncpg connection pooling and full-text search.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

__init__.py

@@ -0,0 +1,28 @@
+"""
+Egregore Database - Message storage and retrieval
+
+This module handles all database operations for the chat system.
+Currently SQLite, designed for easy migration to PostgreSQL later.
+"""
+
+from .messages import (
+    init_db,
+    save_message,
+    save_response_blocks,
+    get_messages,
+    get_conversation_history,
+    search_messages,
+    MESSAGE_PRIORITIES,
+    get_priority_for_type,
+)
+
+__all__ = [
+    "init_db",
+    "save_message",
+    "save_response_blocks",
+    "get_messages",
+    "get_conversation_history",
+    "search_messages",
+    "MESSAGE_PRIORITIES",
+    "get_priority_for_type",
+]