Stage 9 — Subcontractor System: outsourced work with cost+markup

Schema:
- subcontractors (specialty, rating, contact)
- subcontract_jobs (work_order link, cost, markup_pct, client_price, status
  workflow, sent_at/eta/returned_at, paid_to_sub)

Models:
- SubcontractJob: auto number (SC-YY-NNNN), client_price = cost×(1+markup/100)
  when markup>0 (else manual), margin() helper, recalcs parent WO on save/delete
- WorkOrder.recalcTotal now includes non-cancelled subcontract job client_price

Filament (new "Subcontractare" nav group):
- SubcontractorResource (specialty/rating CRUD)
- SubcontractJobResource board with cost/client/margin columns + status filters,
  nav badge = open jobs
- SubcontractJobsRelationManager on WorkOrder

Tests (7 new):
- client_price from markup; manual price without markup; auto number;
  WO total includes jobs; cancelled excluded; delete recalcs; tenant isolation

Closes roadmap to 16/18 stages (only Stage 10 Bodyshop remains).

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

app/Models/Tenant/SubcontractJob.php

@@ -0,0 +1,85 @@
+<?php
+
+namespace App\Models\Tenant;
+
+use App\Models\Concerns\BelongsToTenant;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class SubcontractJob extends Model
+{
+    use BelongsToTenant, SoftDeletes;
+
+    public const STATUSES = [
+        'sent' => 'Trimis',
+        'in_progress' => 'În lucru',
+        'done' => 'Gata',
+        'returned' => 'Returnat',
+        'cancelled' => 'Anulat',
+    ];
+
+    protected $fillable = [
+        'company_id', 'work_order_id', 'subcontractor_id',
+        'number', 'category', 'description',
+        'cost', 'markup_pct', 'client_price',
+        'status', 'sent_at', 'eta', 'returned_at', 'paid_to_sub', 'notes',
+    ];
+
+    protected $casts = [
+        'cost' => 'decimal:2',
+        'markup_pct' => 'decimal:2',
+        'client_price' => 'decimal:2',
+        'sent_at' => 'date',
+        'eta' => 'date',
+        'returned_at' => 'date',
+        'paid_to_sub' => 'boolean',
+    ];
+
+    public function workOrder(): BelongsTo
+    {
+        return $this->belongsTo(WorkOrder::class);
+    }
+
+    public function subcontractor(): BelongsTo
+    {
+        return $this->belongsTo(Subcontractor::class);
+    }
+
+    /** Our margin = what we bill the client − what the sub charges us. */
+    public function margin(): float
+    {
+        return round((float) $this->client_price - (float) $this->cost, 2);
+    }
+
+    public static function generateNumber(int $companyId): string
+    {
+        $year = date('y');
+        $count = static::withoutGlobalScopes()
+            ->where('company_id', $companyId)
+            ->whereYear('created_at', date('Y'))
+            ->count();
+        return sprintf('SC-%s-%04d', $year, $count + 1);
+    }
+
+    protected static function booted(): void
+    {
+        static::creating(function (self $job) {
+            if (empty($job->number)) {
+                $job->number = static::generateNumber(
+                    $job->company_id ?: app(\App\Tenancy\TenantManager::class)->currentId()
+                );
+            }
+        });
+
+        static::saving(function (self $job) {
+            // markup drives client_price unless markup is zero (then keep manual price).
+            if ((float) $job->markup_pct > 0) {
+                $job->client_price = round((float) $job->cost * (1 + (float) $job->markup_pct / 100), 2);
+            }
+        });
+
+        static::saved(fn (self $job) => $job->workOrder?->recalcTotal());
+        static::deleted(fn (self $job) => $job->workOrder?->recalcTotal());
+    }
+}

app/Models/Tenant/Subcontractor.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Models\Tenant;
+
+use App\Models\Concerns\BelongsToTenant;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Subcontractor extends Model
+{
+    use BelongsToTenant, SoftDeletes;
+
+    public const SPECIALTIES = [
+        'Turbo', 'Cutie viteze', 'Variator', 'Casetă direcție',
+        'PDR', 'Vopsitorie', 'Electronică', 'Injectoare', 'Altele',
+    ];
+
+    protected $fillable = [
+        'company_id', 'name', 'specialty', 'phone', 'email',
+        'rating', 'is_active', 'notes',
+    ];
+
+    protected $casts = [
+        'is_active' => 'boolean',
+    ];
+
+    public function jobs(): HasMany
+    {
+        return $this->hasMany(SubcontractJob::class);
+    }
+}

app/Models/Tenant/WorkOrder.php

@@ -93,6 +93,11 @@ class WorkOrder extends Model implements HasMedia
         return $this->hasMany(Payment::class);
     }
 
+    public function subcontractJobs(): HasMany
+    {
+        return $this->hasMany(SubcontractJob::class);
+    }
+
     public function paidAmount(): float
     {
         return (float) $this->payments()->sum('amount');
@@ -107,7 +112,10 @@ class WorkOrder extends Model implements HasMedia
     {
         $worksTotal = $this->works()->sum('total');
         $partsTotal = $this->parts()->sum('total');
-        $sub = (float) $worksTotal + (float) $partsTotal;
+        $subcontractTotal = $this->subcontractJobs()
+            ->where('status', '!=', 'cancelled')
+            ->sum('client_price');
+        $sub = (float) $worksTotal + (float) $partsTotal + (float) $subcontractTotal;
         $disc = (float) $this->discount_pct;
         $this->total = round($sub * (1 - $disc / 100), 2);
         $this->save();