Add Russian i18n with DB translations, locale API, and curator review UI.

UI chrome via react-i18next, catalog text in entity_translations with ru.wikipedia seeding, locale-aware search, and Translations page for publish workflow.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/import-translations.js

@@ -0,0 +1,78 @@
+/**
+ * Import translation rows from JSON or CSV.
+ *
+ * JSON format: [{ "entity_type": "artist", "entity_id": 1, "field_name": "name", "value": "...", "status": "draft" }]
+ * CSV format: entity_type,entity_id,field_name,value[,status][,source]
+ */
+require('dotenv').config();
+const fs = require('fs');
+const path = require('path');
+const { upsertTranslation } = require('../server/translation-service');
+const pool = require('../server/db');
+
+function parseArgs(argv) {
+  const fileIdx = argv.indexOf('--file');
+  const localeIdx = argv.indexOf('--locale');
+  if (fileIdx === -1 || !argv[fileIdx + 1]) {
+    throw new Error('--file <path> is required');
+  }
+  return {
+    filePath: path.resolve(argv[fileIdx + 1]),
+    locale: localeIdx !== -1 && argv[localeIdx + 1] ? argv[localeIdx + 1] : 'ru',
+    publish: argv.includes('--publish'),
+  };
+}
+
+function parseCsv(content) {
+  const lines = content.split(/\r?\n/).filter((l) => l.trim() && !l.trim().startsWith('#'));
+  const rows = [];
+  for (const line of lines) {
+    const parts = line.split(',').map((p) => p.trim().replace(/^"|"$/g, ''));
+    if (parts[0] === 'entity_type') continue;
+    if (parts.length < 4) continue;
+    rows.push({
+      entity_type: parts[0],
+      entity_id: parseInt(parts[1], 10),
+      field_name: parts[2],
+      value: parts[3],
+      status: parts[4] || 'draft',
+      source: parts[5] || 'import_csv',
+    });
+  }
+  return rows;
+}
+
+async function main() {
+  const { filePath, locale, publish } = parseArgs(process.argv.slice(2));
+  const raw = fs.readFileSync(filePath, 'utf8');
+  let rows;
+  if (filePath.endsWith('.json')) {
+    rows = JSON.parse(raw);
+  } else {
+    rows = parseCsv(raw);
+  }
+
+  let count = 0;
+  for (const row of rows) {
+    if (!row.entity_type || !row.entity_id || !row.field_name || row.value == null) continue;
+    const status = publish ? 'published' : (row.status || 'draft');
+    await upsertTranslation({
+      entityType: row.entity_type,
+      entityId: row.entity_id,
+      locale: row.locale || locale,
+      fieldName: row.field_name,
+      value: String(row.value),
+      status,
+      source: row.source || 'import',
+    });
+    count += 1;
+  }
+
+  console.log(`Imported ${count} translation rows from ${filePath}`);
+  await pool.end();
+}
+
+main().catch((err) => {
+  console.error(err.message);
+  process.exit(1);
+});