feat: Add image deletion functionality before a specific date and update gallery UI

lib/database.js

@@ -293,6 +293,38 @@ function cleanupOldImages(daysOld = 30) {
   });
 }
 
+/**
+ * Get images before a specific date (YYYY-MM-DD or YYYY-MM-DD HH:MM:SS)
+ */
+function getImagesBeforeDate(beforeDate) {
+  return new Promise((resolve, reject) => {
+    db.all(
+      'SELECT id, file_path FROM images WHERE fetched_at < ? ORDER BY fetched_at ASC',
+      [beforeDate],
+      (err, rows) => {
+        if (err) reject(err);
+        else resolve(rows || []);
+      }
+    );
+  });
+}
+
+/**
+ * Delete images before a specific date (YYYY-MM-DD or YYYY-MM-DD HH:MM:SS)
+ */
+function deleteImagesBeforeDate(beforeDate) {
+  return new Promise((resolve, reject) => {
+    db.run(
+      'DELETE FROM images WHERE fetched_at < ?',
+      [beforeDate],
+      function(err) {
+        if (err) reject(err);
+        else resolve(this.changes);
+      }
+    );
+  });
+}
+
 /**
  * Get images by hash (detect duplicates)
  */
@@ -337,6 +369,8 @@ module.exports = {
   getImageCount,
   deleteImage,
   cleanupOldImages,
+  getImagesBeforeDate,
+  deleteImagesBeforeDate,
   getImagesByHash,
   closeDatabase
 };