add go bench client

backend/migrations/014_add_pci_slot.sql

@@ -0,0 +1,7 @@
+-- Migration 014: Add pci_slot field
+-- This field stores the PCI slot identifier (e.g., "08:00.0")
+
+ALTER TABLE peripherals ADD COLUMN pci_slot VARCHAR(20);
+
+-- Add index for faster lookups
+CREATE INDEX idx_peripherals_pci_slot ON peripherals(pci_slot);