Add debug Remove entry, Show more auto-picker, and update docs.

DELETE /api/paintings/:id removes works and image files with gallery refresh and catalog navigation; Show more opens the search modal on load; documentation updated for migrate schema and debug workflow.

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

server/index.js

@@ -5,7 +5,7 @@ const fs = require('fs');
 require('dotenv').config();
 
 const pool = require('./db');
-const { ensurePaintingImages, preloadArtistImagesLocal, replacePaintingImageFromUrl, replaceArtistPortraitFromUrl, clearPaintingImage, clearArtistPortrait, replacePaintingImageFromBuffer, replaceArtistPortraitFromBuffer, IMAGE_DIR } = require('./image-service');
+const { ensurePaintingImages, preloadArtistImagesLocal, replacePaintingImageFromUrl, replaceArtistPortraitFromUrl, clearPaintingImage, deletePainting, clearArtistPortrait, replacePaintingImageFromBuffer, replaceArtistPortraitFromBuffer, IMAGE_DIR } = require('./image-service');
 const { searchGoogleImagesFirst, searchArtistPortraitFirst, searchPaintingImagesMany, searchArtistPortraitMany, fetchImageBuffer, friendlyImageFetchError, pickExt } = require('../scripts/image-fetcher');
 
 const app = express();
@@ -733,6 +733,21 @@ app.post('/api/paintings/:id/fix-image', async (req, res) => {
   }
 });
 
+app.delete('/api/paintings/:id', async (req, res) => {
+  try {
+    const paintingId = parseInt(req.params.id, 10);
+    if (!Number.isFinite(paintingId)) {
+      return res.status(400).json({ error: 'Invalid painting id' });
+    }
+    const removed = await deletePainting(paintingId);
+    res.json(removed);
+  } catch (err) {
+    console.error('Delete painting error:', err.message);
+    const status = err.message === 'Painting not found' ? 404 : 500;
+    res.status(status).json({ error: err.message || 'Could not remove painting' });
+  }
+});
+
 app.post('/api/paintings/:id/clear-image', async (req, res) => {
   try {
     const paintingId = parseInt(req.params.id, 10);