init push

backend/store/pg/migration/000033_create_mcp_calls.up.sql

@@ -0,0 +1,11 @@
+CREATE TABLE IF NOT EXISTS mcp_calls (
+    id SERIAL PRIMARY KEY,
+    mcp_session_id TEXT NOT NULL,
+    kb_id TEXT NOT NULL,
+    remote_ip TEXT,
+    initialize_req JSONB,
+    initialize_resp JSONB,
+    tool_call_req JSONB,
+    tool_call_resp TEXT,
+    created_at timestamptz NOT NULL DEFAULT NOW()
+);