a11y 收尾：主题级对比度根因修复（indigo-500→600）+12 处控件 accessible name+4 处 heading-order，7 页复扫全 0 违规；基准 total_issues 保持 8

Result: {"status":"keep","total_issues":8,"eslint_errors":0,"eslint_problems":0,"eslint_warnings":0,"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_exhaustive":0,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_total":0,"golint_test_usetesting":0,"golint_total":8,"golint_usestdlibvars":0,"golint_vetx_total":0,"golint_wastedassign":0,"measure_s":85,"tsc_errors":0,"vitest_failed":0,"vitest_total":126}

frontend/app/(main)/admin/tasks/components/task-manager.tsx

@@ -378,9 +378,9 @@ export function TaskManager() {
                     <div className='space-y-2'>
                       <div className='flex items-start justify-between'>
                         <div className='space-y-1'>
-                          <h3 className='font-semibold text-base tracking-tight'>
+                          <p className='font-semibold text-base tracking-tight'>
                             {task.name}
-                          </h3>
+                          </p>
                           <p className='text-xs text-muted-foreground leading-relaxed line-clamp-2 min-h-[36px]'>
                             {task.description}
                           </p>