feat(database): add schema bootstrap and config

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

backend/app/models/__init__.py

@@ -7,6 +7,7 @@ from app.models.forum import ForumPost, ForumReply
 from app.models.agent import Agent, AgentMessage
 from app.models.conversation import Conversation, Message
 from app.models.knowledge_graph import KGNode, KGEdge
+from app.models.learning import LearningArtifactRecord, SessionRetrospectiveRecord
 from app.models.memory import MemorySummary, UserMemory
 from app.models.brain import (
     BrainEvent,
@@ -20,6 +21,7 @@ from app.models.brain import (
 from app.models.todo import DailyTodo, TodoSource
 from app.models.reminder import Reminder, ReminderStatus
 from app.models.goal import Goal, GoalStatus
+from app.models.skill import Skill
 from app.models.log import Log, LogType, LogLevel
 
 __all__ = [
@@ -38,6 +40,8 @@ __all__ = [
     "Message",
     "KGNode",
     "KGEdge",
+    "LearningArtifactRecord",
+    "SessionRetrospectiveRecord",
     "MemorySummary",
     "UserMemory",
     "BrainEvent",
@@ -53,6 +57,7 @@ __all__ = [
     "ReminderStatus",
     "Goal",
     "GoalStatus",
+    "Skill",
     "Log",
     "LogType",
     "LogLevel",