feat(core,backends,frontends,storage): conversations, inject queue, session pool, gateway mcp tools, api frontend

src/beaver_gateway/storage/__init__.py

@@ -16,13 +16,26 @@ from beaver_gateway.storage.db import (
     revoke_token,
     touch_token,
 )
-from beaver_gateway.storage.models import AuditLog, Token, TranscriptEntry, Usage
+from beaver_gateway.storage.models import (
+    AuditLog,
+    Conversation,
+    ConversationBinding,
+    InjectQueueItem,
+    Schedule,
+    Token,
+    TranscriptEntry,
+    Usage,
+)
 from beaver_gateway.storage.session_store import PostgresSessionStore
 
 __all__ = [
     "AuditLog",
+    "Conversation",
+    "ConversationBinding",
     "Database",
+    "InjectQueueItem",
     "PostgresSessionStore",
+    "Schedule",
     "Token",
     "TranscriptEntry",
     "Usage",