feat: complete GSB construction ERP implementation with dual-mode MR, capitalization cap engine, single PM rule, and system sign-off documentation

Modules/ProjectManagement/app/Models/Project.php

@@ -11,7 +11,6 @@ use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\SoftDeletes;
-use Modules\BiddingManagement\Models\BidPackage;
 use Modules\ContractorManagement\Models\Contractor;
 use Modules\MasterData\Models\MaterialGroup;
 use Modules\MaterialLogistics\Models\ProjectInventory;
@@ -47,6 +46,7 @@ class Project extends Model
         'total_capitalization',
         'parent_project_id',
         'project_type',
+        'classifications',
         'is_unprofitable',
         'current_wizard_step',
     ];
@@ -64,6 +64,7 @@ class Project extends Model
             'target_end_date' => 'date',
             'actual_end_date' => 'date',
             'is_unprofitable' => 'boolean',
+            'classifications' => 'array',
         ];
     }
 
@@ -145,11 +146,6 @@ class Project extends Model
             ->withTimestamps();
     }
 
-    public function bidPackages(): HasMany
-    {
-        return $this->hasMany(BidPackage::class);
-    }
-
     public function parentProject(): BelongsTo
     {
         return $this->belongsTo(Project::class, 'parent_project_id');
@@ -165,6 +161,11 @@ class Project extends Model
         return $this->hasMany(ProjectMaterialsEstimate::class);
     }
 
+    public function projectClassifications(): BelongsToMany
+    {
+        return $this->belongsToMany(ProjectClassification::class, 'project_classification_pivot');
+    }
+
     // --- State Machine Helpers ---
 
     public function transitionTo(ProjectStatus $newStatus): void
@@ -233,8 +234,20 @@ class Project extends Model
 
     public function recalculateCapitalization(): void
     {
-        $total = $this->tasks->sum(fn (Task $task) => $task->total_cost);
-        $this->update(['total_capitalization' => $total]);
+        $tasksTotal = (float) $this->tasks->sum(fn (Task $task) => $task->total_cost);
+
+        $unestimatedMaterialsTotal = 0.0;
+        if (\Illuminate\Support\Facades\Schema::hasTable('material_requisition_items') && \Illuminate\Support\Facades\Schema::hasColumn('material_requisition_items', 'is_unestimated')) {
+            $unestimatedMaterialsTotal = (float) \Modules\MaterialLogistics\Models\MaterialRequisitionItem::whereHas('requisition', function ($q) {
+                $q->where('project_id', $this->id)
+                  ->whereNotIn('status', ['rejected', 'cancelled']);
+            })
+            ->where('is_unestimated', true)
+            ->get()
+            ->sum(fn ($item) => (float) $item->quantity * (float) $item->unit_cost);
+        }
+
+        $this->update(['total_capitalization' => $tasksTotal + $unestimatedMaterialsTotal]);
     }
 
     public function getMilestoneCompletionAttribute(): float