Blog system enhancements: fix publish/unpublish permissions, add action buttons to blog listings, update gallery to show only published blog images, improve blog card layout and description truncation

src/processors/blog/upload_blog_image.php

@@ -0,0 +1,40 @@
+<?php
+$rootPath = dirname(dirname(dirname(__DIR__)));
+require_once($rootPath . "/src/config/env.php");
+require_once($rootPath . "/src/config/connection.php");
+require_once($rootPath . "/src/config/functions.php");
+session_start();
+
+header('Content-Type: application/json');
+
+if (!isset($_FILES['file'])) {
+    echo json_encode(['error' => 'No file uploaded']);
+    http_response_code(400);
+    exit;
+}
+
+// Get blog_id from query parameter
+$blog_id = isset($_GET['blog_id']) ? intval($_GET['blog_id']) : null;
+if (!$blog_id) {
+    echo json_encode(['error' => 'Blog ID required']);
+    http_response_code(400);
+    exit;
+}
+
+$targetDir = $rootPath . "/uploads/blogs/" . $blog_id . "/";
+if (!file_exists($targetDir)) {
+    mkdir($targetDir, 0777, true);
+}
+
+$tmp = $_FILES['file']['tmp_name'];
+$name = basename($_FILES['file']['name']);
+$targetFile = $targetDir . uniqid() . "-" . $name;
+
+if (move_uploaded_file($tmp, $targetFile)) {
+    // Return a relative path for the image
+    $relativePath = "/uploads/blogs/" . $blog_id . "/" . basename($targetFile);
+    echo json_encode(['location' => $relativePath]);
+} else {
+    echo json_encode(['error' => 'Failed to move uploaded file']);
+    http_response_code(500);
+}