Add curator Influences tool with import wizard, CRUD, and graph.

CSV/JSON/XLSX mapping wizard expands artist-level rows to all paintings, blocks duplicate file/data imports via content and payload hashes, and documents the workflow in influence-import.md.

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

server/index.js

@@ -26,6 +26,7 @@ const {
   localizeInfluenceSources,
 } = require('./translation-service');
 const translationRoutes = require('./routes/translations');
+const influenceRoutes = require('./routes/influences');
 const { searchGoogleImagesFirst, searchArtistPortraitFirst, searchPaintingImagesMany, searchArtistPortraitMany, fetchImageBuffer, friendlyImageFetchError, pickExt } = require('../scripts/image-fetcher');
 
 const app = express();
@@ -43,6 +44,7 @@ app.use(express.json({ limit: '20mb' }));
 app.use(createSessionMiddleware());
 app.use('/api/auth', authRoutes);
 app.use('/api/translations', translationRoutes);
+app.use('/api/influences', influenceRoutes);
 app.use(
   '/images',
   express.static(IMAGE_DIR, {