fix(api): hide sensitive fields by default, expose via makeVisible for privileged tokens

Models now declare $hidden for passwords, tokens, db URLs, and compose
fields. API controllers flip from makeHidden-on-deny to makeVisible-on-
allow (can_read_sensitive=true), fixing fields that were never hidden.
Also adds missing fields (mysql/mariadb passwords, logdrain keys, etc.)
to privileged disclosure lists.

Tests added: Feature/Security/ApiSensitiveFieldsTest and
Unit/Models/SensitiveFieldsHiddenTest cover all affected models and
controllers.

tests/Feature/Security/ApiSensitiveFieldsTest.php

@@ -0,0 +1,184 @@
+<?php
+
+use App\Models\Application;
+use App\Models\Environment;
+use App\Models\InstanceSettings;
+use App\Models\Project;
+use App\Models\Server;
+use App\Models\StandalonePostgresql;
+use App\Models\Team;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\DB;
+
+uses(RefreshDatabase::class);
+
+function makeApiToken(User $user, Team $team, array $abilities): string
+{
+    session(['currentTeam' => $team]);
+    $token = $user->createToken('sensitive-test', $abilities);
+    DB::table('personal_access_tokens')->where('id', $token->accessToken->id)->update([
+        'team_id' => $team->id,
+    ]);
+
+    return $token->plainTextToken;
+}
+
+function makeTeamUser(): array
+{
+    $team = Team::factory()->create();
+    $user = User::factory()->create();
+    $team->members()->attach($user->id, ['role' => 'owner']);
+    session(['currentTeam' => $team]);
+
+    return [$team, $user];
+}
+
+beforeEach(function () {
+    InstanceSettings::query()->delete();
+    $settings = new InstanceSettings;
+    $settings->id = 0;
+    $settings->save();
+
+    [$this->team, $this->user] = makeTeamUser();
+
+    $this->server = Server::factory()->create(['team_id' => $this->team->id]);
+    $this->server->settings->forceFill([
+        'sentinel_token' => encrypt('super-secret-sentinel-token'),
+        'sentinel_custom_url' => 'https://sentinel.internal',
+        'logdrain_axiom_api_key' => encrypt('axiom-key-secret'),
+        'logdrain_newrelic_license_key' => encrypt('newrelic-key-secret'),
+        'logdrain_custom_config' => 'custom-config-data',
+        'logdrain_custom_config_parser' => 'custom-parser-data',
+    ])->saveQuietly();
+});
+
+describe('GET /api/v1/servers sensitive field gating', function () {
+    test('read token does not leak sentinel or logdrain fields', function () {
+        $token = makeApiToken($this->user, $this->team, ['read']);
+
+        $response = $this->withHeaders([
+            'Authorization' => 'Bearer '.$token,
+        ])->getJson('/api/v1/servers');
+
+        $response->assertStatus(200);
+
+        $body = $response->getContent();
+        expect($body)->not->toContain('sentinel_token');
+        expect($body)->not->toContain('sentinel_custom_url');
+        expect($body)->not->toContain('logdrain_axiom_api_key');
+        expect($body)->not->toContain('logdrain_newrelic_license_key');
+        expect($body)->not->toContain('logdrain_custom_config');
+    });
+
+    test('read sensitive token sees sentinel and logdrain fields', function () {
+        $token = makeApiToken($this->user, $this->team, ['read', 'read:sensitive']);
+
+        $response = $this->withHeaders([
+            'Authorization' => 'Bearer '.$token,
+        ])->getJson('/api/v1/servers');
+
+        $response->assertStatus(200);
+
+        $body = $response->getContent();
+        expect($body)->toContain('sentinel_token');
+        expect($body)->toContain('sentinel_custom_url');
+        expect($body)->toContain('logdrain_axiom_api_key');
+    });
+
+    test('root token sees sentinel and logdrain fields', function () {
+        $token = makeApiToken($this->user, $this->team, ['root']);
+
+        $response = $this->withHeaders([
+            'Authorization' => 'Bearer '.$token,
+        ])->getJson('/api/v1/servers');
+
+        $response->assertStatus(200);
+
+        $body = $response->getContent();
+        expect($body)->toContain('sentinel_token');
+    });
+});
+
+describe('GET /api/v1/applications nested-relation scrubbing', function () {
+    beforeEach(function () {
+        $this->project = Project::factory()->create(['team_id' => $this->team->id]);
+        $this->environment = Environment::factory()->create(['project_id' => $this->project->id]);
+        $destination = $this->server->standaloneDockers()->firstOrFail();
+
+        $this->application = Application::create([
+            'name' => 'sensitive-test-app',
+            'git_repository' => 'https://github.com/test/test',
+            'git_branch' => 'main',
+            'build_pack' => 'nixpacks',
+            'ports_exposes' => '3000',
+            'environment_id' => $this->environment->id,
+            'destination_id' => $destination->id,
+            'destination_type' => $destination->getMorphClass(),
+        ]);
+    });
+
+    test('read token does not leak sentinel_token via destination.server.settings', function () {
+        $token = makeApiToken($this->user, $this->team, ['read']);
+
+        $response = $this->withHeaders([
+            'Authorization' => 'Bearer '.$token,
+        ])->getJson('/api/v1/applications');
+
+        $response->assertStatus(200);
+
+        $body = $response->getContent();
+        expect($body)->not->toContain('sentinel_token');
+        expect($body)->not->toContain('sentinel_custom_url');
+        expect($body)->not->toContain('logdrain_axiom_api_key');
+    });
+});
+
+describe('GET /api/v1/databases sensitive field gating', function () {
+    beforeEach(function () {
+        $this->project = Project::factory()->create(['team_id' => $this->team->id]);
+        $this->environment = Environment::factory()->create(['project_id' => $this->project->id]);
+        $destination = $this->server->standaloneDockers()->firstOrFail();
+
+        $this->database = StandalonePostgresql::create([
+            'name' => 'sensitive-db',
+            'description' => 'test',
+            'postgres_user' => 'postgres',
+            'postgres_password' => encrypt('super-secret-db-password'),
+            'postgres_db' => 'app',
+            'image' => 'postgres:16-alpine',
+            'environment_id' => $this->environment->id,
+            'destination_id' => $destination->id,
+            'destination_type' => $destination->getMorphClass(),
+        ]);
+    });
+
+    test('read token does not leak postgres_password or db urls', function () {
+        $token = makeApiToken($this->user, $this->team, ['read']);
+
+        $response = $this->withHeaders([
+            'Authorization' => 'Bearer '.$token,
+        ])->getJson('/api/v1/databases');
+
+        $response->assertStatus(200);
+
+        $body = $response->getContent();
+        expect($body)->not->toContain('postgres_password');
+        expect($body)->not->toContain('internal_db_url');
+        expect($body)->not->toContain('external_db_url');
+    });
+
+    test('read sensitive token sees postgres_password', function () {
+        $token = makeApiToken($this->user, $this->team, ['read', 'read:sensitive']);
+
+        $response = $this->withHeaders([
+            'Authorization' => 'Bearer '.$token,
+        ])->getJson('/api/v1/databases');
+
+        $response->assertStatus(200);
+
+        $body = $response->getContent();
+        expect($body)->toContain('postgres_password');
+        expect($body)->toContain('internal_db_url');
+    });
+});