i18n(loyalty): translate terminal_devices block to FR/DE/LB

Replaces the EN placeholders that were seeded with the feature with
proper FR, DE and LB translations. Same scope: terminal_devices.* and
the menu.terminal_devices label.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/modules/loyalty/locales/lb.json

@@ -84,7 +84,7 @@
         "wallet_debug": "Wallet Debug",
         "staff_pins": "Mataarbechter-PINen",
         "transactions": "Transaktionen",
-        "terminal_devices": "Terminal Devices"
+        "terminal_devices": "POS-Terminaler"
     },
     "permissions": {
         "view_programs": "Programmer kucken",
@@ -912,48 +912,48 @@
         "pin_unlock_error": "PIN konnt net entspäert ginn"
     },
     "terminal_devices": {
-        "title": "Terminal Devices",
-        "subtitle": "Pair POS tablets to each store. The setup QR is shown only once at pairing time.",
-        "admin_subtitle": "Pair POS tablets on behalf of this merchant.",
-        "loading": "Loading devices...",
-        "error_loading": "Failed to load devices",
-        "no_devices": "No devices paired yet",
-        "show_revoked": "Include revoked",
-        "pair_device": "Pair Tablet",
-        "pair_hint": "A long-lived setup QR is generated. The tablet scans it once and connects from then on.",
-        "pairing_qr": "Tablet Pairing QR",
-        "qr_warning_title": "Save this now —",
-        "qr_warning_body": "this QR is shown only this time. If you close it before pairing, you will need to revoke and pair again.",
-        "qr_done": "I've paired the tablet",
-        "show_payload": "Show raw payload",
-        "label_field": "Device label",
-        "label_placeholder": "e.g. Counter 1",
-        "store_field": "Store",
-        "select_store": "Select store...",
-        "revoke": "Revoke",
-        "revoke_title": "Revoke device?",
-        "confirm_revoke": "Revoke device '{label}'? Its tablet will stop working immediately.",
-        "delete_title": "Delete device?",
-        "confirm_delete": "Permanently delete device '{label}'? This cannot be undone.",
-        "col_label": "Label",
-        "col_store": "Store",
+        "title": "POS-Terminaler",
+        "subtitle": "Koppel POS-Tablets un all Geschäft. De Setup-QR gëtt nëmmen eemol beim Pairing ugewisen.",
+        "admin_subtitle": "Koppel POS-Tablets am Numm vun dësem Händler.",
+        "loading": "Terminaler gi gelueden...",
+        "error_loading": "Terminaler konnten net gelueden ginn",
+        "no_devices": "Nach keng Terminaler gekoppelt",
+        "show_revoked": "Widerrufe weisen",
+        "pair_device": "Tablet koppelen",
+        "pair_hint": "E laangliewege Setup-QR gëtt generéiert. D'Tablet scannt en eemol an ass duerno verbonnen.",
+        "pairing_qr": "Tablet-Pairing-QR",
+        "qr_warning_title": "Späichert dat elo —",
+        "qr_warning_body": "dëse QR gëtt nëmmen elo gewisen. Wann Dir en zoumaacht ier d'Tablet gekoppelt ass, musst Dir widerruffen a nei koppelen.",
+        "qr_done": "Tablet ass gekoppelt",
+        "show_payload": "Roen Inhalt weisen",
+        "label_field": "Numm vum Terminal",
+        "label_placeholder": "z. B. Keess 1",
+        "store_field": "Geschäft",
+        "select_store": "Geschäft auswielen...",
+        "revoke": "Widerruffen",
+        "revoke_title": "Terminal widerruffen?",
+        "confirm_revoke": "Terminal „{label}“ widerruffen? D'Tablet funktionnéiert direkt net méi.",
+        "delete_title": "Terminal läschen?",
+        "confirm_delete": "Terminal „{label}“ definitiv läschen? Dat kann net réckgängeg gemaach ginn.",
+        "col_label": "Numm",
+        "col_store": "Geschäft",
         "col_status": "Status",
-        "col_last_seen": "Last seen",
-        "col_expires": "Expires",
-        "col_actions": "Actions",
-        "status_active": "Active",
-        "status_revoked": "Revoked",
-        "status_expired": "Expired",
+        "col_last_seen": "Lescht Aktivitéit",
+        "col_expires": "Leeft of",
+        "col_actions": "Aktiounen",
+        "status_active": "Aktiv",
+        "status_revoked": "Widerrufen",
+        "status_expired": "Ofgelaf",
         "toasts": {
-            "paired": "Tablet paired — show the QR to the device",
-            "revoked": "Device revoked",
-            "deleted": "Device deleted"
+            "paired": "Tablet gekoppelt — weist de QR um Apparat",
+            "revoked": "Terminal widerrufen",
+            "deleted": "Terminal geläscht"
         },
         "errors": {
-            "store_required": "Please select a store",
-            "pair_failed": "Failed to pair device",
-            "revoke_failed": "Failed to revoke device",
-            "delete_failed": "Failed to delete device"
+            "store_required": "Wielt w. e. g. e Geschäft",
+            "pair_failed": "Koppelen huet net geklappt",
+            "revoke_failed": "Widerruf huet net geklappt",
+            "delete_failed": "Läschen huet net geklappt"
         }
     },
     "errors": {