chore: prepare for weblate

tool/verify_arb_descriptions.dart

@@ -0,0 +1,63 @@
+import 'dart:convert';
+import 'dart:io';
+
+/// Verifies that every non-meta key in app_en.arb has a corresponding
+/// @key entry with a non-empty `description`.
+///
+/// Usage: dart run tool/verify_arb_descriptions.dart
+Future<void> main() async {
+  final arbPath = 'lib/l10n/app_en.arb';
+  final file = File(arbPath);
+  if (!await file.exists()) {
+    stderr.writeln('ARB file not found: $arbPath');
+    exit(2);
+  }
+
+  final content = await file.readAsString();
+  late final Map<String, dynamic> data;
+  try {
+    data = json.decode(content) as Map<String, dynamic>;
+  } catch (e) {
+    stderr.writeln('Failed to parse $arbPath as JSON: $e');
+    exit(2);
+  }
+
+  final missingMeta = <String>[];
+  final missingDescription = <String>[];
+
+  for (final entry in data.entries) {
+    final key = entry.key;
+    if (key.startsWith('@') || key == '@@locale') continue; // meta
+
+    final metaKey = '@$key';
+    final meta = data[metaKey];
+    if (meta == null || meta is! Map) {
+      missingMeta.add(key);
+      continue;
+    }
+    final desc = meta['description'];
+    if (desc is! String || desc.trim().isEmpty) {
+      missingDescription.add(key);
+    }
+  }
+
+  if (missingMeta.isEmpty && missingDescription.isEmpty) {
+    stdout.writeln('ARB descriptions check passed: all keys have @meta.description.');
+    return;
+  }
+
+  if (missingMeta.isNotEmpty) {
+    stderr.writeln('Missing @meta for keys (${missingMeta.length}):');
+    for (final k in missingMeta) {
+      stderr.writeln(' - $k');
+    }
+  }
+  if (missingDescription.isNotEmpty) {
+    stderr.writeln('Missing description in @meta for keys (${missingDescription.length}):');
+    for (final k in missingDescription) {
+      stderr.writeln(' - $k');
+    }
+  }
+  exit(1);
+}
+