backend/src/main/java/com/printcalculator/BackendApplication.java

@@ -2,12 +2,12 @@ package com.printcalculator;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.security.servlet.UserDetailsServiceAutoConfiguration;
 import org.springframework.scheduling.annotation.EnableScheduling;
 import org.springframework.scheduling.annotation.EnableAsync;
-import org.springframework.scheduling.annotation.EnableScheduling;
 import org.springframework.transaction.annotation.EnableTransactionManagement;
 
-@SpringBootApplication
+@SpringBootApplication(exclude = {UserDetailsServiceAutoConfiguration.class})
 @EnableTransactionManagement
 @EnableScheduling
 @EnableAsync

backend/src/main/java/com/printcalculator/config/SecurityConfig.java

@@ -29,6 +29,8 @@ public class SecurityConfig {
                 .logout(AbstractHttpConfigurer::disable)
                 .authorizeHttpRequests(auth -> auth
                         .requestMatchers(HttpMethod.OPTIONS, "/**").permitAll()
+                        .requestMatchers("/actuator/health", "/actuator/health/**").permitAll()
+                        .requestMatchers("/actuator/**").denyAll()
                         .requestMatchers("/api/admin/auth/login").permitAll()
                         .requestMatchers("/api/admin/**").authenticated()
                         .anyRequest().permitAll()

backend/src/main/java/com/printcalculator/controller/QuoteSessionController.java

@@ -97,7 +97,7 @@ public class QuoteSessionController {
         session.setExpiresAt(OffsetDateTime.now().plusDays(30)); 
         
         var policy = pricingRepo.findFirstByIsActiveTrueOrderByValidFromDesc();
-        session.setSetupCostChf(policy != null ? policy.getFixedJobFeeChf() : BigDecimal.ZERO);
+        session.setSetupCostChf(quoteCalculator.calculateSessionSetupFee(policy));
         
         session = sessionRepo.save(session);
         return ResponseEntity.ok(session);
@@ -296,9 +296,7 @@ public class QuoteSessionController {
             return variant;
         }
 
-        String requestedMaterialCode = settings.getMaterial() != null
-                ? settings.getMaterial().trim().toUpperCase()
-                : "PLA";
+        String requestedMaterialCode = normalizeRequestedMaterialCode(settings.getMaterial());
 
         FilamentMaterialType materialType = materialRepo.findByMaterialCode(requestedMaterialCode)
                 .orElseGet(() -> materialRepo.findByMaterialCode("PLA")
@@ -316,6 +314,18 @@ public class QuoteSessionController {
                 .orElseThrow(() -> new RuntimeException("No active variant for material: " + requestedMaterialCode));
     }
 
+    private String normalizeRequestedMaterialCode(String value) {
+        if (value == null || value.isBlank()) {
+            return "PLA";
+        }
+
+        return value.trim()
+                .toUpperCase(Locale.ROOT)
+                .replace('_', ' ')
+                .replace('-', ' ')
+                .replaceAll("\\s+", " ");
+    }
+
     // 3. Update Line Item
     @PatchMapping("/line-items/{lineItemId}")
     @Transactional

backend/src/main/java/com/printcalculator/dto/PrintSettingsDto.java

@@ -8,7 +8,7 @@ public class PrintSettingsDto {
     private String complexityMode;
     
     // Common
-    private String material; // e.g. "PLA", "PETG"
+    private String material; // e.g. "PLA", "PLA TOUGH", "PETG"
     private String color;    // e.g. "White", "#FFFFFF"
     private Long filamentVariantId;
     private Long printerMachineId;

backend/src/main/java/com/printcalculator/service/OrcaProfileResolver.java

@@ -116,6 +116,7 @@ public class OrcaProfileResolver {
                 : "PLA";
 
         return switch (materialCode) {
+            case "PLA TOUGH" -> "Bambu PLA Tough @BBL A1";
             case "PETG" -> "Generic PETG";
             case "TPU" -> "Generic TPU";
             case "PC" -> "Generic PC";

backend/src/main/java/com/printcalculator/service/ProfileManager.java

@@ -46,6 +46,7 @@ public class ProfileManager {
         
         // Material Aliases
         profileAliases.put("pla_basic", "Bambu PLA Basic @BBL A1");
+        profileAliases.put("pla_tough", "Bambu PLA Tough @BBL A1");
         profileAliases.put("petg_basic", "Bambu PETG Basic @BBL A1");
         profileAliases.put("tpu_95a", "Bambu TPU 95A @BBL A1");
         

backend/src/main/java/com/printcalculator/service/QuoteCalculator.java

@@ -21,6 +21,8 @@ import java.util.List;
 
 @Service
 public class QuoteCalculator {
+    private static final BigDecimal SETUP_FEE_DOUBLE_THRESHOLD_CHF = BigDecimal.TEN;
+    private static final BigDecimal SETUP_FEE_MULTIPLIER_BELOW_THRESHOLD = BigDecimal.valueOf(2);
 
     private final PricingPolicyRepository pricingRepo;
     private final PricingPolicyMachineHourTierRepository tierRepo;
@@ -111,6 +113,21 @@ public class QuoteCalculator {
         return rawCost.multiply(markupFactor).setScale(2, RoundingMode.HALF_UP);
     }
 
+    public BigDecimal calculateSessionSetupFee(PricingPolicy policy) {
+        if (policy == null || policy.getFixedJobFeeChf() == null) {
+            return BigDecimal.ZERO.setScale(2, RoundingMode.HALF_UP);
+        }
+
+        BigDecimal baseSetupFee = policy.getFixedJobFeeChf();
+        if (baseSetupFee.compareTo(SETUP_FEE_DOUBLE_THRESHOLD_CHF) < 0) {
+            return baseSetupFee
+                    .multiply(SETUP_FEE_MULTIPLIER_BELOW_THRESHOLD)
+                    .setScale(2, RoundingMode.HALF_UP);
+        }
+
+        return baseSetupFee.setScale(2, RoundingMode.HALF_UP);
+    }
+
     private BigDecimal calculateMachineCost(PricingPolicy policy, BigDecimal hours) {
         List<PricingPolicyMachineHourTier> tiers = tierRepo.findAllByPricingPolicyOrderByTierStartHoursAsc(policy);
         if (tiers.isEmpty()) {
@@ -158,6 +175,7 @@ public class QuoteCalculator {
 
     private String detectMaterialCode(String profileName) {
         String lower = profileName.toLowerCase();
+        if (lower.contains("pla tough") || lower.contains("pla_tough")) return "PLA TOUGH";
         if (lower.contains("petg")) return "PETG";
         if (lower.contains("tpu")) return "TPU";
         if (lower.contains("abs")) return "ABS";

backend/src/main/resources/application.properties

@@ -7,6 +7,7 @@ spring.datasource.username=${DB_USERNAME:printcalc}
 spring.datasource.password=${DB_PASSWORD:printcalc_secret}
 spring.jpa.hibernate.ddl-auto=update
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
+spring.jpa.open-in-view=false
 
 
 # Slicer Configuration
@@ -47,3 +48,6 @@ admin.password=${ADMIN_PASSWORD}
 admin.session.secret=${ADMIN_SESSION_SECRET}
 admin.session.ttl-minutes=${ADMIN_SESSION_TTL_MINUTES:480}
 admin.auth.trust-proxy-headers=${ADMIN_AUTH_TRUST_PROXY_HEADERS:false}
+
+# Expose only liveness endpoint by default.
+management.endpoints.web.exposure.include=health

db.sql

@@ -285,6 +285,7 @@ insert into filament_material_type (material_code,
                                     is_technical,
                                     technical_type_label)
 values ('PLA', false, false, null),
+       ('PLA TOUGH', false, false, null),
        ('PETG', false, false, null),
        ('TPU', true, false, null),
        ('PC', false, true, 'engineering'),
@@ -355,6 +356,37 @@ on conflict (filament_material_type_id, variant_display_name) do update
         is_active       = excluded.is_active;
 
 -- Varianti base per materiali principali del calcolatore
+with mat as (select filament_material_type_id
+             from filament_material_type
+             where material_code = 'PLA TOUGH')
+insert
+into filament_variant (filament_material_type_id, variant_display_name, color_name, color_hex, finish_type, brand,
+                       is_matte, is_special, cost_chf_per_kg, stock_spools, spool_net_kg, is_active)
+select mat.filament_material_type_id,
+       'PLA Tough Nero',
+       'Nero',
+       '#1A1A1A',
+       'GLOSSY',
+       'Bambu',
+       false,
+       false,
+       18.00,
+       1.000,
+       1.000,
+       true
+from mat
+on conflict (filament_material_type_id, variant_display_name) do update
+    set color_name      = excluded.color_name,
+        color_hex       = excluded.color_hex,
+        finish_type     = excluded.finish_type,
+        brand           = excluded.brand,
+        is_matte        = excluded.is_matte,
+        is_special      = excluded.is_special,
+        cost_chf_per_kg = excluded.cost_chf_per_kg,
+        stock_spools    = excluded.stock_spools,
+        spool_net_kg    = excluded.spool_net_kg,
+        is_active       = excluded.is_active;
+
 with mat as (select filament_material_type_id
              from filament_material_type
              where material_code = 'PETG')
@@ -491,13 +523,14 @@ with p as (select printer_machine_profile_id
              and pmp.nozzle_diameter_mm = 0.40::numeric),
      m as (select filament_material_type_id, material_code
            from filament_material_type
-           where material_code in ('PLA', 'PETG', 'TPU', 'PC'))
+           where material_code in ('PLA', 'PLA TOUGH', 'PETG', 'TPU', 'PC'))
 insert
 into material_orca_profile_map (printer_machine_profile_id, filament_material_type_id, orca_filament_profile_name, is_active)
 select p.printer_machine_profile_id,
        m.filament_material_type_id,
        case m.material_code
            when 'PLA' then 'Bambu PLA Basic @BBL A1'
+           when 'PLA TOUGH' then 'Bambu PLA Tough @BBL A1'
            when 'PETG' then 'Bambu PETG Basic @BBL A1'
            when 'TPU' then 'Bambu TPU 95A @BBL A1'
            when 'PC' then 'Generic PC @BBL A1'

frontend/src/app/features/admin/pages/admin-filament-stock.component.html

@@ -316,7 +316,7 @@
 <div class="dialog-backdrop" *ngIf="variantToDelete" (click)="closeDeleteVariantDialog()"></div>
 <div class="confirm-dialog" *ngIf="variantToDelete">
   <h4>Sei sicuro?</h4>
-  <p>Vuoi eliminare la variante <strong>{{ variantToDelete?.variantDisplayName }}</strong>?</p>
+  <p>Vuoi eliminare la variante <strong>{{ variantToDelete.variantDisplayName }}</strong>?</p>
   <p class="muted">L'operazione non è reversibile.</p>
   <div class="dialog-actions">
     <button type="button" class="btn-secondary" (click)="closeDeleteVariantDialog()">Annulla</button>

frontend/src/assets/i18n/de.json

@@ -133,6 +133,8 @@
     "TITLE": "Über uns",
     "EYEBROW": "3D-Druck-Labor",
     "SUBTITLE": "Wir sind zwei Studenten mit viel Motivation und Lernbereitschaft.",
+    "HOW_TEXT": "3D Fab ist entstanden, um das Potenzial des 3D-Drucks in alltagstaugliche Lösungen zu verwandeln. Wir haben mit technischer Neugier begonnen und sind zur Herstellung von Ersatzteilen, Produkten und maßgeschneiderten Prototypen gekommen. Um von einer Idee zu einem konkreten Projekt zu gelangen, haben wir unseren automatischen Rechner eingeführt: klare Angebote in einem Klick, damit Sie einen professionellen Service ohne Preisüberraschungen erhalten.",
+    "PASSIONS_TITLE": "Unsere Interessen",
     "PASSION_BIKE_TRIAL": "Bike Trial",
     "PASSION_MOUNTAIN": "Berge",
     "PASSION_SKI": "Ski",

frontend/src/assets/i18n/en.json

@@ -133,6 +133,8 @@
     "TITLE": "About Us",
     "EYEBROW": "3D Printing Lab",
     "SUBTITLE": "We are two students with a strong desire to build and learn.",
+    "HOW_TEXT": "3D Fab was created to turn the potential of 3D printing into everyday solutions. We started from technical curiosity and grew into producing spare parts, products, and custom prototypes. To move from an idea to a concrete project, we launched our automatic calculator: clear quotes in one click, so you get a professional service with no price surprises.",
+    "PASSIONS_TITLE": "Our interests",
     "PASSION_BIKE_TRIAL": "Bike trial",
     "PASSION_MOUNTAIN": "Mountain",
     "PASSION_SKI": "Ski",

frontend/src/assets/i18n/fr.json

@@ -190,6 +190,8 @@
     "TITLE": "Qui sommes-nous",
     "EYEBROW": "Atelier d'impression 3D",
     "SUBTITLE": "Nous sommes deux étudiants avec beaucoup d'envie de faire et d'apprendre.",
+    "HOW_TEXT": "3D Fab est né pour transformer le potentiel de l'impression 3D en solutions du quotidien. Nous sommes partis de la curiosité technique et nous sommes arrivés à la production de pièces de rechange, de produits et de prototypes sur mesure. Pour passer d'une idée à un projet concret, nous avons lancé notre calculateur automatique : des devis clairs en un clic pour vous garantir un service professionnel, sans surprises sur le prix.",
+    "PASSIONS_TITLE": "Nos centres d'intérêt",
     "PASSION_BIKE_TRIAL": "Bike trial",
     "PASSION_MOUNTAIN": "Montagne",
     "PASSION_SKI": "Ski",