fix(tkfb): 작업보고서 모바일 버전 교체 + TBM z-index 수정

- NAV_MENU: report-create.html → report-create-mobile.html
- pages 테이블: work.report_create 경로 변경
- TBM .m-header z-index: 100 → 30 (사이드바 가림 방지)
- tkfb-core.js 캐시 버스팅 전체 갱신

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

system1-factory/web/static/js/tkfb-core.js

@@ -118,7 +118,7 @@ const NAV_MENU = [
     { cat: null, href: '/pages/dashboard-new.html', icon: 'fa-home', label: '대시보드', key: 'dashboard' },
     { cat: '작업 관리', items: [
         { href: '/pages/work/tbm-mobile.html', icon: 'fa-clipboard-list', label: 'TBM 관리', key: 'work.tbm' },
-        { href: '/pages/work/report-create.html', icon: 'fa-file-alt', label: '작업보고서 작성', key: 'work.report_create' },
+        { href: '/pages/work/report-create-mobile.html', icon: 'fa-file-alt', label: '작업보고서 작성', key: 'work.report_create' },
         { href: '/pages/work/analysis.html', icon: 'fa-chart-bar', label: '작업 분석', key: 'work.analysis', admin: true },
         { href: `${_tkqcBase}/`, icon: 'fa-exclamation-triangle', label: '부적합 현황', key: 'work.nonconformity', external: true },
         { href: '/pages/work/schedule.html', icon: 'fa-calendar-alt', label: '공정표', key: 'work.schedule' },