Initial commit: SuiviCPT personal finance tracker

Laravel 11 + Livewire 3/Volt + Alpine.js + Tailwind app for household
budget planning, transaction tracking, and financial dashboards.

- Multi-tenant households with member invites
- Plan: monthly/yearly budget per category with overrides
- Suivi: transaction log with running balance (desktop + mobile quick-entry)
- Dashboard: budget vs tracked breakdown + Chart.js donuts
- Flux: Sankey diagram of income allocation
- WCAG 2.1 AA color tokens, dark mode, accessible tables/forms
- 50 Pest tests

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

database/migrations/2026_07_25_101902_create_transactions_table.php

@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('transactions', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('household_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('category_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('user_id')->constrained()->cascadeOnDelete();
+            $table->date('date');
+            $table->date('date_effective');
+            $table->decimal('amount', 12, 2);
+            $table->string('details')->nullable();
+            $table->timestamps();
+            $table->index(['household_id', 'date_effective']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('transactions');
+    }
+};