Stage 8 — Smart Pricing Engine: contextual coefficients

Contextual multipliers layered on top of base MarkupRule pricing, applied
per work-order line based on vehicle, client and urgency.

Schema:
- pricing_coefficients (multiplier, conditions JSON, priority, stackable)
- vehicles.vehicle_class (sedan/suv/commercial/hybrid/ev/premium)
- clients.is_vip
- work_orders.urgency (normal/urgent/express)

PricingEngine::quote(Part, Vehicle?, Client?, urgency):
- base = MarkupRule on buy_price (fallback sell_price or buy×1.30)
- context: class (explicit or inferred hybrid/ev from fuel), age, vip, urgency
- stackable coefficients all multiply; non-stackable take only the highest
- returns {base, final, applied[]} breakdown

PricingCoefficient::matches(ctx) — classes/age range/vip/urgency conditions
(empty = always applies).

Filament:
- PricingCoefficientResource with condition builder (classes, age, vip, urgency)
- vehicle_class select, client is_vip toggle, WO urgency select
- "Preț inteligent" action on WO parts shows breakdown + applies sell_price

Tests (6 new):
- base-only without coefficients; age coefficient gating; VIP; express urgency;
  stackable multiply vs non-stackable highest-wins; hybrid inferred from fuel

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/Models/Tenant/Client.php

@@ -18,7 +18,7 @@ class Client extends Model
         'phone', 'phone_alt', 'email',
         'telegram', 'telegram_chat_id', 'whatsapp', 'viber',
         'notify_prefs',
-        'source', 'marketing_channel', 'status',
+        'source', 'marketing_channel', 'status', 'is_vip',
         'balance', 'discount_pct', 'notes',
         'assigned_to', 'last_contact_at',
     ];
@@ -28,6 +28,7 @@ class Client extends Model
         'discount_pct' => 'decimal:2',
         'last_contact_at' => 'datetime',
         'notify_prefs' => 'array',
+        'is_vip' => 'boolean',
     ];
 
     /** Normalize a phone number to E.164-ish digits for matching. */

app/Models/Tenant/PricingCoefficient.php

@@ -0,0 +1,79 @@
+<?php
+
+namespace App\Models\Tenant;
+
+use App\Models\Concerns\BelongsToTenant;
+use Illuminate\Database\Eloquent\Model;
+
+class PricingCoefficient extends Model
+{
+    use BelongsToTenant;
+
+    public const VEHICLE_CLASSES = [
+        'sedan' => 'Sedan / Hatchback',
+        'suv' => 'SUV / Crossover',
+        'commercial' => 'Comercial (van/camion)',
+        'hybrid' => 'Hibrid',
+        'ev' => 'Electric (EV)',
+        'premium' => 'Premium / Lux',
+    ];
+
+    public const URGENCY = [
+        'normal' => 'Normal',
+        'urgent' => 'Urgent',
+        'express' => 'Express',
+    ];
+
+    protected $fillable = [
+        'company_id', 'name', 'multiplier', 'conditions',
+        'priority', 'stackable', 'is_active',
+    ];
+
+    protected $casts = [
+        'multiplier' => 'decimal:3',
+        'conditions' => 'array',
+        'stackable' => 'boolean',
+        'is_active' => 'boolean',
+    ];
+
+    /**
+     * Does this coefficient apply to the given pricing context?
+     *
+     * @param array{class?:?string, age?:?int, vip?:bool, urgency?:string} $ctx
+     */
+    public function matches(array $ctx): bool
+    {
+        $c = (array) $this->conditions;
+
+        // Vehicle class — if rule lists classes, context class must be among them.
+        $classes = (array) ($c['classes'] ?? []);
+        if (! empty($classes)) {
+            if (empty($ctx['class']) || ! in_array($ctx['class'], $classes, true)) {
+                return false;
+            }
+        }
+
+        // Vehicle age range.
+        if (isset($c['age_min']) && $c['age_min'] !== null && $c['age_min'] !== '') {
+            if (($ctx['age'] ?? null) === null || $ctx['age'] < (int) $c['age_min']) return false;
+        }
+        if (isset($c['age_max']) && $c['age_max'] !== null && $c['age_max'] !== '') {
+            if (($ctx['age'] ?? null) === null || $ctx['age'] > (int) $c['age_max']) return false;
+        }
+
+        // VIP requirement (true = only VIP, false/null = ignore).
+        if (! empty($c['client_vip'])) {
+            if (empty($ctx['vip'])) return false;
+        }
+
+        // Urgency — if rule lists urgencies, context must match.
+        $urg = (array) ($c['urgency'] ?? []);
+        if (! empty($urg)) {
+            if (empty($ctx['urgency']) || ! in_array($ctx['urgency'], $urg, true)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+}

app/Models/Tenant/Vehicle.php

@@ -15,7 +15,7 @@ class Vehicle extends Model
     protected $fillable = [
         'company_id', 'client_id',
         'make', 'model', 'year', 'vin', 'plate',
-        'engine', 'gearbox', 'fuel', 'mileage', 'color', 'notes',
+        'engine', 'gearbox', 'fuel', 'vehicle_class', 'mileage', 'color', 'notes',
     ];
 
     public function client(): BelongsTo

app/Models/Tenant/WorkOrder.php

@@ -38,7 +38,7 @@ class WorkOrder extends Model implements HasMedia
         'client_id', 'vehicle_id', 'master_id', 'deal_id', 'appointment_id',
         'opened_at', 'closed_at', 'mileage_in', 'mileage_out',
         'complaint', 'diagnosis', 'recommendations',
-        'status', 'pay_status', 'approved', 'approved_at',
+        'status', 'urgency', 'pay_status', 'approved', 'approved_at',
         'discount_pct', 'total',
         'eta_at', 'tracking_token',
     ];