feat(web): single-language content authoring (LabelEditor + localized_text at default lang)

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

web/src/objects/field-input.test.tsx

@@ -22,10 +22,9 @@ test("boolean field renders a checkbox", async () => {
   expect(await screen.findByRole("checkbox", { name: /is fragment/i })).toBeInTheDocument();
 });
 
-test("localized_text renders sv and en inputs", async () => {
+test("localized_text renders a single input for the default language", async () => {
   renderApp(<Harness defKey="title_ml" />);
-  expect(await screen.findByLabelText(/title.*\(en\)/i)).toBeInTheDocument();
-  expect(screen.getByLabelText(/title.*\(sv\)/i)).toBeInTheDocument();
+  expect(await screen.findByLabelText(/^title/i)).toBeInTheDocument();
 });
 
 test("term field renders a select populated from the vocabulary", async () => {

web/src/objects/field-input.tsx

@@ -3,6 +3,7 @@ import { useTranslation } from "react-i18next";
 
 import type { components } from "../api/schema";
 import { useAuthorities, useTerms } from "../api/queries";
+import { useConfig } from "../config/config-context";
 import { Checkbox } from "@/components/ui/checkbox";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
@@ -70,6 +71,7 @@ export function FieldInput<TValues extends { fields: Record<string, unknown> }>(
   form: FieldForm<TValues>;
 }) {
   const { t, i18n } = useTranslation();
+  const { default_language } = useConfig();
   const lang = i18n.language.startsWith("sv") ? "sv" : "en";
   const label = labelIn(definition.labels, lang);
   const name = fieldPath<TValues>(definition.key);
@@ -128,30 +130,12 @@ export function FieldInput<TValues extends { fields: Record<string, unknown> }>(
     case "localized_text":
       return (
         <div className="space-y-1">
-          <div className="text-sm font-medium">{label}</div>
-
-          <Label
-            htmlFor={`${definition.key}-en`}
-            className="text-xs text-neutral-500"
-          >
-            {label} (EN)
-          </Label>
-
+          <Label htmlFor={definition.key}>{label}</Label>
           <Input
-            id={`${definition.key}-en`}
-            {...form.register(fieldPath<TValues>(`${definition.key}.en`), { required: definition.required })}
-          />
-
-          <Label
-            htmlFor={`${definition.key}-sv`}
-            className="text-xs text-neutral-500"
-          >
-            {label} (SV)
-          </Label>
-
-          <Input
-            id={`${definition.key}-sv`}
-            {...form.register(fieldPath<TValues>(`${definition.key}.sv`))}
+            id={definition.key}
+            {...form.register(fieldPath<TValues>(`${definition.key}.${default_language}`), {
+              required: definition.required,
+            })}
           />
         </div>
       );