feat(setup): generate the camera's Alarm Server settings to paste

When a camera has Alarm Server push enabled, the setup form now shows the
camera's Alarm Settings (Destination IP / URL / Protocol / Port) ready to copy,
so the operator never hunts the deviceId or memorises the endpoint.

CRUCIAL: host/port come from the BACKEND address on the camera's subnet
(backendIpForDevice + the server's listen port — the same probe the push-IP
picker uses), NOT window.location.origin (the SPA's dev/proxy origin, which
would wrongly say localhost:5173). Verified live: matches the on-camera config
field-for-field (10.0.10.203 / …/event / HTTP / 3000). Shows a "save first"
(needs a deviceId) then "test first" (needs the resolved backend IP) hint.
i18n keys added to sq + en (parity enforced).

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

apps/web/src/lib/i18n/en.ts

@@ -406,6 +406,19 @@ export const en: Catalog = {
     "anprFail.vision-disabled": "Vision service is disabled — enable it (VISION_ENABLED) to test ANPR.",
     "anprFail.snapshot-failed": "Couldn't take a snapshot from the camera (offline or unreachable).",
     "anprFail.no-plate": "No plate found in the snapshot.",
+    alarmUrlTitle: "Alarm Server settings (enter these in the camera)",
+    alarmUrlHint:
+      "Enter these in the camera at Configuration → Event → … → Alarm Settings (or Notify Surveillance Center). The camera POSTs every event here — no polling.",
+    alarmUrlCopy: "Copy all",
+    alarmUrlCopied: "Copied ✓",
+    alarmUrlSaveFirst:
+      "Save the camera first — the address is generated once the device has an ID. Re-open it for editing to see it.",
+    alarmUrlTestFirst:
+      "Click “Test connection” first — that resolves this host's IP on the camera's network (so the camera can reach it).",
+    alarmFieldHost: "Destination IP / Host",
+    alarmFieldUrl: "URL",
+    alarmFieldProtocol: "Protocol",
+    alarmFieldPort: "Port",
     whichBarrier: "Which barrier does this device serve?",
     controller: "Controller",
     choose: "Choose…",