fix

backend/src/state.rs

@@ -74,6 +74,8 @@ impl AppState {
     pub fn db_for_tenant(&self, tenant_id: Uuid) -> AppResult<PgPooledConnection> {
         debug_assert!(!tenant_id.is_nil(), "nil tenant_id passed to db_for_tenant");
         let mut conn = self.db_unscoped()?;
+        let conn_ptr = &*conn as *const _;
+        tracing::trace!(target = "db_pool", ?conn_ptr, tenant_id = %tenant_id, "apply tenant context");
         apply_tenant_guc(&mut conn, tenant_id)?;
         clear_user_guc(&mut conn)?;
         Ok(conn)
@@ -84,6 +86,8 @@ impl AppState {
             tracing::error!(error = ?err, "database pool error");
             AppError::internal("database pool error")
         })?;
+        let conn_ptr = &*conn as *const _;
+        tracing::trace!(target = "db_pool", ?conn_ptr, "acquired connection");
         clear_tenant_context(&mut conn)?;
         Ok(conn)
     }