feat: complete Epic 0 — foundation migration & infrastructure setup

Stories 0.2-0.5: rename folders→declarations (backend+frontend), configure
Redis for cache/queue/sessions, add foundation database migrations
(permissions, archived_at), replace DeclarationStatus enum with architecture
lifecycle values, create DeclarationObserver for status transition validation
and auto-archive, fix controller status transitions to respect observer rules.

93 tests pass (240 assertions).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/Feature/Auth/AuthenticationTest.php

@@ -81,4 +81,4 @@ test('users are rate limited', function () {
     ]);
 
     $response->assertTooManyRequests();
-});
+});

tests/Feature/Auth/EmailVerificationTest.php

@@ -92,4 +92,4 @@ test('already verified user visiting verification link is redirected without fir
 
     Event::assertNotDispatched(Verified::class);
     expect($user->fresh()->hasVerifiedEmail())->toBeTrue();
-});
+});

tests/Feature/Auth/PasswordConfirmationTest.php

@@ -19,4 +19,4 @@ test('password confirmation requires authentication', function () {
     $response = $this->get(route('password.confirm'));
 
     $response->assertRedirect(route('login'));
-});
+});

tests/Feature/Auth/PasswordResetTest.php

@@ -70,4 +70,4 @@ test('password cannot be reset with invalid token', function () {
     ]);
 
     $response->assertSessionHasErrors('email');
-});
+});

tests/Feature/Auth/RegistrationTest.php

@@ -16,4 +16,4 @@ test('new users can register', function () {
 
     $this->assertAuthenticated();
     $response->assertRedirect(route('dashboard', absolute: false));
-});
+});

tests/Feature/Auth/TwoFactorChallengeTest.php

@@ -42,4 +42,4 @@ test('two factor challenge can be rendered', function () {
         ->assertInertia(fn (Assert $page) => $page
             ->component('auth/TwoFactorChallenge'),
         );
-});
+});

tests/Feature/Auth/VerificationNotificationTest.php

@@ -26,4 +26,4 @@ test('does not send verification notification if email is verified', function ()
         ->assertRedirect(route('dashboard', absolute: false));
 
     Notification::assertNothingSent();
-});
+});