feat: Add quotation modal and iddatadb update for quotation parts/images

- Add quotation modal for selecting quotation
- Load quotation parts and photos
- Update iddatadb with quotation parts and photo references

public/userarea/load_quotations.php

@@ -0,0 +1,32 @@
+<?php
+header('Content-Type: application/json');
+
+include('include/headscript.php');
+
+$dbHandler = DBHandlerSelect::getInstance();
+$pdo = $dbHandler->getConnection();
+
+// Recupera l'ID dell'utente loggato
+$user_id = $iduserlogin ?? 1;
+
+if (!$user_id) {
+    echo json_encode(['success' => false, 'message' => "ID dell'utente autenticato mancante"]);
+    exit;
+}
+
+try {
+    $stmt = $pdo->prepare(
+        "SELECT DISTINCT q.*
+        FROM quotations q
+        INNER JOIN identification_parts ip
+        	ON ip.idquotations = q.id
+        	AND ip.iddatadb IS NULL
+        WHERE q.iduser = :iduser"
+    );
+    $stmt->execute([':iduser' => $user_id]);
+    $quotations = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+    echo json_encode(['success' => true, 'quotations' => $quotations]);
+} catch (PDOException $e) {
+    echo json_encode(['success' => false, 'message' => 'Errore nel caricamento delle quotations: ' . $e->getMessage()]);
+}