Merge remote-tracking branch 'origin/sub_laptop_7' into main_laptop_1

# Conflicts:
#	B05_Profile/B05_Profile_UI_RouteEdit.ts
#	ui_template/ui_template_locale_b2.ts

ui_template/ui_template_locale_b2.ts

@@ -1067,4 +1067,8 @@ export const ui_locales_b2 = {
     "지금 관은 그대로 두고 간격이 먼 구간에만 관을 더함",
     "Keep the current culverts and add culverts only where the spacing is too long",
   ],
+  Design_Pipeline_Unstable: [
+    "계산 불안정 — 입력과 결과가 세 바퀴 안에 안 맞음",
+    "Calculation unstable — inputs and results did not settle in three rounds",
+  ],
 } as const satisfies Record<string, LocaleEntry>;