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>

tests/Feature/CategoryTest.php

@@ -0,0 +1,50 @@
+<?php
+
+use App\Livewire\Categories\Index;
+use App\Models\Category;
+use App\Models\User;
+use Livewire\Livewire;
+
+it('lets a member add a category to their household', function (): void {
+    $user = User::factory()->create();
+
+    Livewire::actingAs($user)
+        ->test(Index::class)
+        ->set('newName.depense', 'Loyer')
+        ->call('add', 'depense')
+        ->assertHasNoErrors();
+
+    expect($user->currentHousehold->categories()->where('name', 'Loyer')->exists())->toBeTrue();
+});
+
+it('prevents a user from editing another household categorie', function (): void {
+    $owner = User::factory()->create();
+    $intruder = User::factory()->create();
+
+    $category = $owner->currentHousehold->categories()->create([
+        'name' => 'Courses',
+        'type' => 'depense',
+        'position' => 1,
+    ]);
+
+    Livewire::actingAs($intruder)
+        ->test(Index::class)
+        ->call('startEdit', $category->id)
+        ->assertForbidden();
+});
+
+it('deletes a category', function (): void {
+    $user = User::factory()->create();
+
+    $category = $user->currentHousehold->categories()->create([
+        'name' => 'Assurances',
+        'type' => 'depense',
+        'position' => 1,
+    ]);
+
+    Livewire::actingAs($user)
+        ->test(Index::class)
+        ->call('delete', $category->id);
+
+    expect(Category::find($category->id))->toBeNull();
+});