feat(dev_tools): add translation editor for browsing and editing UI translations

New admin page to browse, search, compare, and inline-edit translation
keys across all modules and languages from the browser.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/dev_tools/locales/de.json

@@ -14,7 +14,24 @@
         "components": "Komponenten",
         "icons": "Icons",
         "sql_query": "SQL Abfrage",
-        "platform_debug": "Plattform Debug"
+        "platform_debug": "Plattform Debug",
+        "translation_editor": "Übersetzungseditor"
+    },
+    "translation_editor": {
+        "title": "Übersetzungseditor",
+        "all_modules": "Alle Module",
+        "search_placeholder": "Schlüssel und Werte suchen...",
+        "filter_all": "Alle",
+        "filter_missing": "Fehlende",
+        "filter_variables": "Variablen",
+        "module": "Modul",
+        "key_path": "Schlüsselpfad",
+        "missing": "fehlend",
+        "saving": "Speichern...",
+        "no_results": "Keine Übersetzungsschlüssel entsprechen Ihren Filtern.",
+        "loading": "Übersetzungen werden geladen...",
+        "previous": "Zurück",
+        "next": "Weiter"
     },
     "sql_query": {
         "title": "SQL Abfrage-Werkzeug",

app/modules/dev_tools/locales/en.json

@@ -14,7 +14,24 @@
         "components": "Components",
         "icons": "Icons",
         "sql_query": "SQL Query",
-        "platform_debug": "Platform Debug"
+        "platform_debug": "Platform Debug",
+        "translation_editor": "Translation Editor"
+    },
+    "translation_editor": {
+        "title": "Translation Editor",
+        "all_modules": "All Modules",
+        "search_placeholder": "Search keys and values...",
+        "filter_all": "All",
+        "filter_missing": "Missing",
+        "filter_variables": "Variables",
+        "module": "Module",
+        "key_path": "Key Path",
+        "missing": "missing",
+        "saving": "Saving...",
+        "no_results": "No translation keys match your filters.",
+        "loading": "Loading translations...",
+        "previous": "Previous",
+        "next": "Next"
     },
     "sql_query": {
         "title": "SQL Query Tool",

app/modules/dev_tools/locales/fr.json

@@ -14,7 +14,24 @@
         "components": "Composants",
         "icons": "Icônes",
         "sql_query": "Requête SQL",
-        "platform_debug": "Debug Plateforme"
+        "platform_debug": "Debug Plateforme",
+        "translation_editor": "Éditeur de traductions"
+    },
+    "translation_editor": {
+        "title": "Éditeur de traductions",
+        "all_modules": "Tous les modules",
+        "search_placeholder": "Rechercher clés et valeurs...",
+        "filter_all": "Tous",
+        "filter_missing": "Manquantes",
+        "filter_variables": "Variables",
+        "module": "Module",
+        "key_path": "Chemin de clé",
+        "missing": "manquante",
+        "saving": "Enregistrement...",
+        "no_results": "Aucune clé de traduction ne correspond à vos filtres.",
+        "loading": "Chargement des traductions...",
+        "previous": "Précédent",
+        "next": "Suivant"
     },
     "sql_query": {
         "title": "Outil de requête SQL",

app/modules/dev_tools/locales/lb.json

@@ -14,7 +14,24 @@
         "components": "Komponenten",
         "icons": "Icons",
         "sql_query": "SQL Ufro",
-        "platform_debug": "Plattform Debug"
+        "platform_debug": "Plattform Debug",
+        "translation_editor": "Iwwersetzungseditor"
+    },
+    "translation_editor": {
+        "title": "Iwwersetzungseditor",
+        "all_modules": "All Moduler",
+        "search_placeholder": "Schlësselen a Wäerter sichen...",
+        "filter_all": "All",
+        "filter_missing": "Fehlend",
+        "filter_variables": "Variabelen",
+        "module": "Modul",
+        "key_path": "Schlësselpfad",
+        "missing": "fehlend",
+        "saving": "Späicheren...",
+        "no_results": "Keng Iwwersetzungsschlësselen entspriechen Ären Filteren.",
+        "loading": "Iwwersetzunge gi gelueden...",
+        "previous": "Zréck",
+        "next": "Weider"
     },
     "sql_query": {
         "title": "SQL Ufro-Werkzeug",