fix(snmp,db): save FDB to PG (empty inet null), bridge_port + MAC normalize

Made-with: Cursor

internal/store/migrate.go

@@ -14,6 +14,9 @@ var scanInterfacesSQL string
 //go:embed sql/003_scan_port_devices.sql
 var scanPortDevicesSQL string
 
+//go:embed sql/004_scan_port_devices_bridge_port.sql
+var scanPortDevicesBridgePortSQL string
+
 func RunMigrations(db *sql.DB) error {
 	if _, err := db.Exec(initSQL); err != nil {
 		return err
@@ -24,5 +27,8 @@ func RunMigrations(db *sql.DB) error {
 	if _, err := db.Exec(scanPortDevicesSQL); err != nil {
 		return err
 	}
+	if _, err := db.Exec(scanPortDevicesBridgePortSQL); err != nil {
+		return err
+	}
 	return nil
 }

internal/store/sql/003_scan_port_devices.sql

@@ -3,6 +3,7 @@ create table if not exists scan_port_devices (
   scan_id text not null references scan_jobs(id) on delete cascade,
   ip inet not null,
   if_index int not null,
+  bridge_port int not null default 0,
   mac text not null,
   learned_ip inet null,
   checked_at timestamptz not null
@@ -13,3 +14,6 @@ create index if not exists idx_scan_port_devices_scan_ip_if
 
 create index if not exists idx_scan_port_devices_scan_ip_mac
   on scan_port_devices (scan_id, ip, mac);
+
+create index if not exists idx_scan_port_devices_scan_ip_br
+  on scan_port_devices (scan_id, ip, bridge_port);

internal/store/sql/004_scan_port_devices_bridge_port.sql

@@ -0,0 +1,4 @@
+alter table scan_port_devices add column if not exists bridge_port int not null default 0;
+
+create index if not exists idx_scan_port_devices_scan_ip_br
+  on scan_port_devices (scan_id, ip, bridge_port);