feat: companies CRUD with person dialog integration and navigation

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

api/app/Http/Controllers/Api/V1/CompanyController.php

@@ -20,7 +20,10 @@ final class CompanyController extends Controller
     {
         Gate::authorize('viewAny', [Company::class, $organisation]);
 
-        $companies = $organisation->companies()->get();
+        $companies = $organisation->companies()
+            ->withCount('persons')
+            ->ordered()
+            ->get();
 
         return CompanyResource::collection($companies);
     }
@@ -34,6 +37,15 @@ final class CompanyController extends Controller
         return $this->created(new CompanyResource($company));
     }
 
+    public function show(Organisation $organisation, Company $company): JsonResponse
+    {
+        Gate::authorize('view', [$company, $organisation]);
+
+        $company->loadCount('persons');
+
+        return $this->success(new CompanyResource($company));
+    }
+
     public function update(UpdateCompanyRequest $request, Organisation $organisation, Company $company): JsonResponse
     {
         Gate::authorize('update', [$company, $organisation]);