refactor(devices): rename driver "cashino" → "escpos" (generic ESC/POS)

The reachability-only clone driver carried its first unit's vendor name,
which read as misleading in the setup UI once other clones (ICS/Xprinter
XP-K200L, verified 2026-07-06: no /prn_stat.htm) used it. It was always
the generic ESC/POS driver — now named so:

- printer-cashino.ts → printer-generic.ts; GenericEscposPrinter;
  id "escpos", label "Generic ESC/POS 80mm printer (Cashino,
  ICS/Xprinter…)".
- Migration 0023 rewrites stored devices.driver_id rows.
- The registry keeps a PERMANENT cashino→escpos alias so restored
  pre-rename backups still resolve instead of "unknown driver".

Prose mentions of the Cashino as physical hardware stay — it's a real,
verified-fit printer; only the driver identity stopped being vendor-named.

Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V

packages/devices/src/drivers/index.ts

@@ -5,7 +5,7 @@ import { registry } from "../registry.js";
 import { dingtianDriver } from "./access-dingtian.js";
 import { stubAccessDriver } from "./access-stub.js";
 import { dahuaDriver, hikvisionDriver } from "./camera.js";
-import { cashinoDriver } from "./printer-cashino.js";
+import { escposDriver } from "./printer-generic.js";
 import { rongtaDriver } from "./printer-rongta.js";
 import { dingtianQrReaderDriver, tcpipReaderDriver, wiegandReaderDriver } from "./reader.js";
 
@@ -23,7 +23,7 @@ export function registerBuiltinDrivers(): void {
   registry.register(hikvisionDriver);
   registry.register(dahuaDriver);
   registry.register(rongtaDriver);
-  registry.register(cashinoDriver);
+  registry.register(escposDriver);
 }
 
 export {
@@ -35,5 +35,5 @@ export {
   hikvisionDriver,
   dahuaDriver,
   rongtaDriver,
-  cashinoDriver,
+  escposDriver,
 };