Add installment collection breakdown to product analytics

Adds محصّل vs إجمالي الإيرادات with a progress bar and remaining balance.
Collection is computed as a pro-rata share of invoice.paid_amount based on
the product line's fraction of the invoice total — so mixed invoices
(product + program) correctly attribute only the product's share of each
payment. Price overrides are excluded from the product's line because they
always land on the program item, leaving the product total_amount intact.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/Livewire/Inventory/ProductShow.php

@@ -49,6 +49,24 @@ public function render()
             ->orderBy('invoice_items.created_at')
             ->value('invoice_items.created_at');
 
+        // Collected (installment-aware): pro-rata share of invoice.paid_amount
+        // = SUM( item_total / invoice_total * paid_amount ) per invoice
+        // Works correctly for mixed invoices (product + program) because the
+        // price override always lands on the program line, not the product line.
+        $totalCollected = (int) (clone $soldQuery)
+            ->selectRaw('SUM(
+                CASE
+                    WHEN invoices.total_amount > 0
+                    THEN (invoice_items.total_amount::float / invoices.total_amount) * invoices.paid_amount
+                    ELSE 0
+                END
+            ) as collected')
+            ->value('collected');
+
+        $collectedPercent = $totalRevenue > 0
+            ? round($totalCollected / $totalRevenue * 100, 1)
+            : 0;
+
         // Stock-in from movements (genuinely a stock concept)
         $totalIn = InventoryMovement::where('product_id', $this->product->id)
             ->where('direction', MovementDirection::In->value)
@@ -76,6 +94,8 @@ public function render()
             'totalIn' => $totalIn,
             'totalSold' => $totalUnitsSold,
             'totalRevenue' => $totalRevenue,
+            'totalCollected' => $totalCollected,
+            'collectedPercent' => $collectedPercent,
             'avgMonthlyMovement' => $avgMonthlyMovement,
             'margin' => $margin,
         ]);

resources/views/livewire/inventory/product-show.blade.php

@@ -348,16 +348,39 @@ class="px-6 py-3 text-sm font-medium border-b-2 transition-colors">
             {{-- Analytics Tab --}}
             <div x-show="activeTab === 'analytics'" x-cloak>
                 <div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-6">
-                    {{-- Total Revenue --}}
-                    <div class="border border-emerald-200 rounded-lg p-5 text-center bg-emerald-50">
-                        <div class="inline-flex items-center justify-center w-12 h-12 rounded-full bg-emerald-100 mb-3">
-                            <svg class="w-6 h-6 text-emerald-600" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8c-1.657 0-3 .895-3 2s1.343 2 3 2 3 .895 3 2-1.343 2-3 2m0-8c1.11 0 2.08.402 2.599 1M12 8V7m0 1v8m0 0v1m0-1c-1.11 0-2.08-.402-2.599-1M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
-                            </svg>
+                    {{-- Total Revenue + Collected --}}
+                    <div class="border border-emerald-200 rounded-lg p-5 bg-emerald-50 col-span-1 sm:col-span-2 lg:col-span-1">
+                        <div class="flex items-center gap-3 mb-3">
+                            <div class="inline-flex items-center justify-center w-10 h-10 rounded-full bg-emerald-100 shrink-0">
+                                <svg class="w-5 h-5 text-emerald-600" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8c-1.657 0-3 .895-3 2s1.343 2 3 2 3 .895 3 2-1.343 2-3 2m0-8c1.11 0 2.08.402 2.599 1M12 8V7m0 1v8m0 0v1m0-1c-1.11 0-2.08-.402-2.599-1M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
+                                </svg>
+                            </div>
+                            <p class="text-xs font-medium text-emerald-700">{{ __('إجمالي الإيرادات') }}</p>
+                        </div>
+
+                        {{-- Billed total --}}
+                        <p class="text-2xl font-bold text-emerald-800">{{ number_format($totalRevenue / 100, 2) }} <span class="text-sm font-normal text-emerald-600">ج.م</span></p>
+
+                        {{-- Collected sub-line --}}
+                        <div class="mt-3">
+                            <div class="flex justify-between items-center mb-1">
+                                <span class="text-xs text-emerald-700">{{ __('محصّل') }}</span>
+                                <span class="text-xs font-semibold text-emerald-800">
+                                    {{ number_format($totalCollected / 100, 2) }} ج.م
+                                    <span class="text-emerald-600">({{ $collectedPercent }}%)</span>
+                                </span>
+                            </div>
+                            <div class="w-full bg-emerald-200 rounded-full h-2 overflow-hidden">
+                                <div class="h-2 rounded-full transition-all duration-500"
+                                     style="width: {{ min(100, $collectedPercent) }}%; background-color: #059669;"></div>
+                            </div>
+                            @if($collectedPercent < 100)
+                            <p class="text-xs text-amber-600 mt-1">
+                                {{ __('متبقي') }}: {{ number_format(($totalRevenue - $totalCollected) / 100, 2) }} ج.م
+                            </p>
+                            @endif
                         </div>
-                        <p class="text-xs font-medium text-emerald-700 mb-1">{{ __('إجمالي الإيرادات') }}</p>
-                        <p class="text-xl font-bold text-emerald-800">{{ number_format($totalRevenue / 100, 2) }}</p>
-                        <p class="text-xs text-emerald-600 mt-1">{{ __('ج.م') }}</p>
                     </div>
 
                     {{-- Total Sold (units) --}}