Add image upload support, file handling improvements, and OpenAI integration

- Introduced `uploadRoute` to handle image uploads with MIME type validation and size restrictions.
- Added `upload_store` class for managing file storage and generating presigned URLs for upload/download.
- Enhanced file server to differentiate between PDFs and uploaded files, supporting dynamic content delivery.
- Integrated OpenAI module for License Plate Recognition (LPR), including API configuration and schema validation.
- Updated core structure with new interfaces (`minio_uploads_i`, `openai_i`) and classes (`openai`, `upload_store`).
- Adjusted `index.php` and file routes to support dynamic MIME checks and direct link generation.

services/nginx/app/file_server.php

@@ -1,24 +1,51 @@
 <?php
 // Get the file name from the URL
 $file = $_SERVER['REQUEST_URI'];
-$file = str_replace('/modules/washcertificates/output/certificates/', '', $file);
+$isPDF = false;
+// Check if the filetype is .pdf
+if (preg_match('/\.pdf$/', $file)) {
+    $isPDF = true;
+}
+if ($isPDF) {
+    $file = str_replace('/modules/washcertificates/output/certificates/', '', $file);
 
 // Download the file from minio, and send it to the client
-$wash_certificate_store = new \classes\wash_certificate_store();
+    $wash_certificate_store = new \classes\wash_certificate_store();
 
 // Check if the certificate exists
-if (!$wash_certificate_store->isFileInStore($file)) {
-    echo 'Certificate not found in store';
-    //header('HTTP/1.1 404 Not Found');
+    if (!$wash_certificate_store->isFileInStore($file)) {
+        echo 'Certificate not found in store';
+        //header('HTTP/1.1 404 Not Found');
+        exit;
+    }
+
+// Download the certificate from the store to /tmp
+    $certificate_path = $wash_certificate_store->download($file);
+
+// Send the certificate to the client
+    header('Content-Type: application/pdf');
+    header('Content-Disposition: inline; filename="' . $file . '"');
+    header('Content-Length: ' . filesize($certificate_path));
+    readfile($certificate_path);
     exit;
 }
 
-// Download the certificate from the store to /tmp
-$certificate_path = $wash_certificate_store->download($file);
-
-// Send the certificate to the client
-header('Content-Type: application/pdf');
-header('Content-Disposition: inline; filename="' . $file . '"');
-header('Content-Length: ' . filesize($certificate_path));
-readfile($certificate_path);
-exit;
+// Check if the file might be a temporary static file
+if (!$isPDF) {
+    $uploads = new \classes\upload_store();
+    $file = str_replace('/files/', '', $file);
+    // Check if the file exists in the upload store
+    if (!$uploads->isFileInStore($file)) {
+        echo 'File not found in store';
+        exit;
+    }
+    // Download the file from the store to /tmp
+    $file_path = $uploads->download($file);
+    // Send the file to the client
+    $mime_type = mime_content_type($file_path);
+    header('Content-Type: ' . $mime_type);
+    header('Content-Disposition: inline; filename="' . basename($file_path) . '"');
+    header('Content-Length: ' . filesize($file_path));
+    readfile($file_path);
+    exit;
+}