feat(m02-df): 흐름도 Model 넓힌 타입 · 함수 머리 올림

- 재료 요소 mode(fixed · choice · rule) · scope · rule{field · op · from} · default · slot
- 입력 갈래 logic + CfLogicRef{key · name · outputs · designs}
- 선 규칙 CfLink.rule — lookup · gate · scale · round · CfRound(func.output.round · output.round)
- 흐름 CfStep · CfDesign · traceBack · traceForward · designInputs · Eval CfBreak · breaks
- M02_DF_Rule.ts — ruleLabel · applyRule · applyRound (속은 준비 중)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VBToTCGk5dqDKeXCEP3vhk

M02_MasterTemplete/DataFlow/M02_DF_Eval.ts

@@ -208,3 +208,25 @@ export function checkLogic(lg: CfLogic, values: CfValues = {}): string[] {
         out.push(tl("NoValue", { box: b.name, pill }));
   return [...out, ...ev.errors];
 }
+
+/** 끊긴 곳 하나 — 상자 · 알약 · 선 위에 표시할 것 */
+export interface CfBreak {
+  kind:
+    | "빈 받는 자리"
+    | "통과 안 됨"
+    | "표에 없는 조건"
+    | "맞는 재료 없음"
+    | "조건 겹침"
+    | "조건 안 맞음"
+    | "오류";
+  box: string;
+  port?: string;
+  link?: string;
+  /** 쉬운 말 */
+  text: string;
+}
+
+/** 끊긴 곳 목록(넓힘 · 준비 중) */
+export function breaks(_lg: CfLogic, _values: CfValues = {}): CfBreak[] {
+  throw new Error("준비 중");
+}