feat: admin migration endpoint — Translations with post_id → Artefacts

Converts old caption/body copy Translations to Artefacts (type=copy)
with ArtefactVersions + ArtefactVersionTexts. Idempotent: skips posts
that already have copy Artefacts. Dry-run by default.

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

server/server.js

@@ -673,6 +673,111 @@ app.get('/api/health', async (req, res) => {
   });
 });
 
+// ─── MIGRATIONS ─────────────────────────────────────────────────
+
+// One-time migration: convert Translations with post_id → Artefacts (copy type)
+// Safe to run multiple times — skips posts that already have copy Artefacts.
+app.post('/api/admin/migrate-translations-to-artefacts', requireAuth, async (req, res) => {
+  if (req.session.userRole !== 'superadmin') return res.status(403).json({ error: 'Superadmin only' });
+  const dryRun = req.body.dry_run !== false; // default true for safety
+  const report = { dry_run: dryRun, skipped: [], migrated: [], errors: [] };
+
+  try {
+    // All translations linked to a post (caption or body copy)
+    const translations = await nocodb.list('Translations', {
+      where: `(post_id,gt,0)`, limit: 2000,
+    });
+
+    for (const t of translations) {
+      if (!t.post_id) continue;
+      const copyType = t.copy_type || 'body';
+
+      // Skip if an Artefact for this post+copy_type already exists
+      const existing = await nocodb.list('Artefacts', {
+        where: `(post_id,eq,${t.post_id})~and(type,eq,copy)~and(copy_type,eq,${copyType})`,
+        limit: 1,
+      });
+      if (existing.length > 0) {
+        report.skipped.push({ translation_id: t.Id, post_id: t.post_id, copy_type: copyType, reason: 'artefact already exists' });
+        continue;
+      }
+
+      if (dryRun) {
+        report.migrated.push({ translation_id: t.Id, post_id: t.post_id, copy_type: copyType, title: t.title, dry_run: true });
+        continue;
+      }
+
+      try {
+        // 1. Create Artefact
+        const artefact = await nocodb.create('Artefacts', {
+          title: t.title || (copyType === 'caption' ? 'Caption' : 'Body Copy'),
+          type: 'copy',
+          copy_type: copyType,
+          status: t.status || 'draft',
+          post_id: t.post_id,
+          brand_id: t.brand_id || null,
+          approver_ids: t.approver_ids || null,
+          approval_token: t.approval_token || null,
+          approved_by_name: t.approved_by_name || null,
+          approved_at: t.approved_at || null,
+          feedback: t.feedback || null,
+          created_by_user_id: t.created_by_user_id || null,
+        });
+
+        // 2. Create first ArtefactVersion
+        const version = await nocodb.create('ArtefactVersions', {
+          artefact_id: artefact.Id,
+          version_number: 1,
+          status: t.status || 'draft',
+          created_by_user_id: t.created_by_user_id || null,
+        });
+
+        // 3. Migrate source content as a version text entry
+        const textsToCreate = [];
+        if (t.source_content && t.source_language) {
+          textsToCreate.push({
+            version_id: version.Id,
+            language_code: t.source_language,
+            language_label: t.source_language,
+            content: t.source_content,
+            status: 'draft',
+          });
+        }
+
+        // 4. Migrate TranslationTexts as additional language entries
+        const translationTexts = await nocodb.list('TranslationTexts', {
+          where: `(translation_id,eq,${t.Id})`, limit: 50,
+        });
+        for (const tt of translationTexts) {
+          if (tt.language_code === t.source_language) continue; // already added above
+          textsToCreate.push({
+            version_id: version.Id,
+            language_code: tt.language_code,
+            language_label: tt.language_label || tt.language_code,
+            content: tt.content || '',
+            status: tt.status || 'draft',
+          });
+        }
+
+        if (textsToCreate.length > 0) {
+          await nocodb.bulkCreate('ArtefactVersionTexts', textsToCreate);
+        }
+
+        // 5. Set current_version on Artefact
+        await nocodb.update('Artefacts', artefact.Id, { current_version: 1 });
+
+        report.migrated.push({ translation_id: t.Id, artefact_id: artefact.Id, post_id: t.post_id, copy_type: copyType, title: artefact.title, texts: textsToCreate.length });
+      } catch (err) {
+        report.errors.push({ translation_id: t.Id, post_id: t.post_id, error: err.message });
+      }
+    }
+
+    res.json({ ...report, summary: { total: translations.length, migrated: report.migrated.length, skipped: report.skipped.length, errors: report.errors.length } });
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
+});
+
 // ─── EMAIL TEST ─────────────────────────────────────────────────
 
 app.post('/api/admin/test-email', requireAuth, async (req, res) => {