fix(security) : add role checks on Gitea API resources and all MCP tools

- GiteaBranch, GiteaBranchName, GiteaPullRequest: require ROLE_USER
- All 22 MCP tools: require ROLE_USER (ROLE_ADMIN for users/clients listing)

Tickets: T-002, T-007

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/Mcp/Tool/TimeEntry/CreateTimeEntryTool.php

@@ -16,6 +16,8 @@ use DateTimeImmutable;
 use Doctrine\ORM\EntityManagerInterface;
 use InvalidArgumentException;
 use Mcp\Capability\Attribute\McpTool;
+use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\Security\Core\Exception\AccessDeniedException;
 
 use function sprintf;
 
@@ -30,6 +32,7 @@ class CreateTimeEntryTool
         private readonly TaskTagRepository $taskTagRepository,
         private readonly TimeEntryRepository $timeEntryRepository,
         private readonly ClientTicketRepository $clientTicketRepository,
+        private readonly Security $security,
     ) {}
 
     public function __invoke(
@@ -43,6 +46,10 @@ class CreateTimeEntryTool
         ?string $description = null,
         ?int $clientTicketId = null,
     ): string {
+        if (!$this->security->isGranted('ROLE_USER')) {
+            throw new AccessDeniedException('Access denied: ROLE_USER required.');
+        }
+
         $user = $this->userRepository->find($userId);
         if (null === $user) {
             throw new InvalidArgumentException(sprintf('User with ID %d not found.', $userId));

src/Mcp/Tool/TimeEntry/DeleteTimeEntryTool.php

@@ -8,6 +8,8 @@ use App\Repository\TimeEntryRepository;
 use Doctrine\ORM\EntityManagerInterface;
 use InvalidArgumentException;
 use Mcp\Capability\Attribute\McpTool;
+use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\Security\Core\Exception\AccessDeniedException;
 
 use function sprintf;
 
@@ -17,10 +19,15 @@ class DeleteTimeEntryTool
     public function __construct(
         private readonly TimeEntryRepository $timeEntryRepository,
         private readonly EntityManagerInterface $entityManager,
+        private readonly Security $security,
     ) {}
 
     public function __invoke(int $id): string
     {
+        if (!$this->security->isGranted('ROLE_USER')) {
+            throw new AccessDeniedException('Access denied: ROLE_USER required.');
+        }
+
         $entry = $this->timeEntryRepository->find($id);
 
         if (null === $entry) {

src/Mcp/Tool/TimeEntry/ListTimeEntriesTool.php

@@ -8,12 +8,15 @@ use App\Mcp\Tool\Serializer;
 use App\Repository\TimeEntryRepository;
 use DateTimeImmutable;
 use Mcp\Capability\Attribute\McpTool;
+use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\Security\Core\Exception\AccessDeniedException;
 
 #[McpTool(name: 'list-time-entries', description: 'List time entries with optional filters. Duration is computed in minutes and null for active timers.')]
 class ListTimeEntriesTool
 {
     public function __construct(
         private readonly TimeEntryRepository $timeEntryRepository,
+        private readonly Security $security,
     ) {}
 
     public function __invoke(
@@ -25,6 +28,10 @@ class ListTimeEntriesTool
         ?string $endDate = null,
         int $limit = 100,
     ): string {
+        if (!$this->security->isGranted('ROLE_USER')) {
+            throw new AccessDeniedException('Access denied: ROLE_USER required.');
+        }
+
         $limit = min($limit, 200);
 
         $qb = $this->timeEntryRepository->createQueryBuilder('te')

src/Mcp/Tool/TimeEntry/UpdateTimeEntryTool.php

@@ -14,6 +14,8 @@ use DateTimeImmutable;
 use Doctrine\ORM\EntityManagerInterface;
 use InvalidArgumentException;
 use Mcp\Capability\Attribute\McpTool;
+use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\Security\Core\Exception\AccessDeniedException;
 
 use function sprintf;
 
@@ -27,6 +29,7 @@ class UpdateTimeEntryTool
         private readonly TaskTagRepository $taskTagRepository,
         private readonly ClientTicketRepository $clientTicketRepository,
         private readonly EntityManagerInterface $entityManager,
+        private readonly Security $security,
     ) {}
 
     public function __invoke(
@@ -40,6 +43,10 @@ class UpdateTimeEntryTool
         ?string $description = null,
         ?int $clientTicketId = null,
     ): string {
+        if (!$this->security->isGranted('ROLE_USER')) {
+            throw new AccessDeniedException('Access denied: ROLE_USER required.');
+        }
+
         $entry = $this->timeEntryRepository->find($id);
 
         if (null === $entry) {