feat(M01): 테스트 컨테이너 세 방식 첫 화면 안내 · B 하위 로직 줄·합계 표시 · 규격·단가 멈춤 글 쉬운 말

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016WRFJmmhPi4exAzHgPZHMT

M01_MasterData/M01_MasterData_UI_Test_C.ts

@@ -24,7 +24,7 @@ import {
   type FlowKind,
 } from "./M01_MasterData_UI_Test_C_Model";
 import { hasPickable, pickPanel, swappedRow, type Swaps } from "./M01_MasterData_UI_Test_Pick";
-import { plainReason, tt } from "./M01_MasterData_UI_Test_Text";
+import { guideLines, plainReason, tt } from "./M01_MasterData_UI_Test_Text";
 import "./M01_MasterData_UI_Test_C_Style.css";
 
 const TEXT = {
@@ -212,6 +212,10 @@ function mount(host: HTMLElement, one: LogicOne): void {
         ...(one.reasons.length
           ? [el("p", { className: "m01c__bad", text: one.reasons.join(" · ") })]
           : []),
+        el("ul", {
+          className: "m01c__muted",
+          children: guideLines("C").map((t) => el("li", { text: t })),
+        }),
         stopped,
         ...(hasPickable(row)
           ? [