style: manual UI tweaks (users/companies headers, wider layout, user-view, projects index)

User's manual changes: header slots with New-user/New-company actions, wider
max-w-7xl containers on /admin/users and /companies, plus tweaks to
user-view and projects index views. All views compile.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

routes/web.php

@@ -95,6 +95,7 @@ Route::middleware(['auth'])->group(function () {
             'recentIssues'      => $recentIssues,
         ]);
     })->name('dashboard');
+    
 Route::get('/reports/dashboard', ReportsDashboard::class)->name('reports.dashboard');
     Route::prefix('reports')->name('reports.')->group(function () {
         Route::get('export/projects', [App\Http\Controllers\Reports\ExportController::class, 'exportProjects'])->name('export.projects');