feat(bearing): 일체 choice gated by the pair eccentricity rule (승인 2026-10-26)

- PierInput.bearingLayout: 분리 (default) or 일체, tracked for changes.
- 일체 is selectable only when there is at least one pair and every pair is
  within 100 mm; otherwise the chip is disabled with the reason.
- Validation: B01 (info) when 일체 is chosen and allowed, the block shape is
  still the 분리 shape; B02 (warning) when it is not allowed and the model
  falls back to 분리.
- The 일체 block shape (2500 × 1200) is not modelled yet.

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>

src/core/bearing-layout.ts

@@ -53,3 +53,13 @@ export function pairEccentricities(blocks: BlockModel[]): PairEccentricity[] {
   }
   return out;
 }
+
+/**
+ * 일체 is possible when there is at least one pair and every pair is within the limit (승인 2026-10-26).
+ * Returns the pairs over the limit so the reason can be shown.
+ */
+export function integratedCheck(blocks: BlockModel[]): { allowed: boolean; overLimit: PairEccentricity[] } {
+  const pairs = pairEccentricities(blocks);
+  const overLimit = pairs.filter((p) => !p.allowed);
+  return { allowed: pairs.length > 0 && overLimit.length === 0, overLimit };
+}

src/core/changes.ts

@@ -23,7 +23,7 @@ export const EDITABLE_FIELDS = [
 ] as const;
 
 /** Inputs tracked for overrides and pending changes: the numeric cards plus 열별 본수 (an array, compared by value). */
-export const TRACKED_KEYS = [...EDITABLE_FIELDS.map((f) => f.key), 'pileRows', 'groundPosition', 'groundWaterOn', 'groundWaterEl', 'floodLevelEl', 'scourDepthM', 'highWaterEl', 'lowWaterEl', 'strataRows', 'bearingType'] as const;
+export const TRACKED_KEYS = [...EDITABLE_FIELDS.map((f) => f.key), 'pileRows', 'groundPosition', 'groundWaterOn', 'groundWaterEl', 'floodLevelEl', 'scourDepthM', 'highWaterEl', 'lowWaterEl', 'strataRows', 'bearingType', 'bearingLayout'] as const;
 
 export type EditableKey = (typeof TRACKED_KEYS)[number];
 
@@ -52,6 +52,7 @@ export const FIELD_LABELS: Record<EditableKey, string> = {
   highWaterEl: '고조위 HWL',
   lowWaterEl: '저조위 LWL',
   bearingType: '받침 종류·용량',
+  bearingLayout: '받침 배치',
   strataRows: '지층 행',
 };
 

src/core/shape-options.ts

@@ -22,7 +22,7 @@ const x = (label: string): ShapeOption => ({ label, isDefault: false });
 const ok = (label: string): ShapeOption => ({ label, isDefault: false, confirmed: true });
 
 export const SHAPE_GROUPS: Record<MemberId, ShapeGroup[]> = {
-  bearing: [{ title: '배치', options: [d('분리'), x('일체')] }],
+  bearing: [{ title: '배치', options: [d('분리'), ok('일체')] }],
   coping: [
     { title: '교좌면', options: [d('직각'), x('모따기'), x('라운드')] },
     { title: '하면', options: [d('직선'), x('곡선 오목'), x('곡선 볼록')] },

src/core/types.ts

@@ -70,6 +70,8 @@ export interface PierInput {
   lowWaterEl?: number;
   /** 받침 종류·용량 as text (승인 2026-10-26). Absent = 탄성받침 (the default). */
   bearingType?: string;
+  /** 받침 배치 (승인 2026-10-26): 분리 (default) or 일체. 일체 is allowed only when every front–back pair is within 100 mm. */
+  bearingLayout?: '분리' | '일체';
   strataRows?: StrataRow[];
 }
 

src/core/validate.ts

@@ -1,6 +1,7 @@
 import { DIM, type PierModel } from './geometry';
 import type { Issue, PierInput, PierType } from './types';
 import { validateGround, validatePileEmbedment, validateStrataNValues } from './ground';
+import { integratedCheck } from './bearing-layout';
 
 const EXPECTED_COLUMNS: Record<PierType, number> = { 'T형': 1, '2주형': 2, '3주형': 3 };
 
@@ -93,4 +94,14 @@ export function validatePier(input: PierInput, model: PierModel, issues: Issue[]
   validateGround(input, issues);
   validatePileEmbedment(input, model, issues);
   validateStrataNValues(input, issues);
+  // 일체 (승인 2026-10-26): the block shape of 일체 is not modelled yet, so the model keeps 분리 and says so.
+  if (input.bearingLayout === '일체') {
+    const check = integratedCheck(model.blocks);
+    if (!check.allowed) {
+      const worst = check.overLimit.map((p) => `전열 ${p.frontNo}·후열 ${p.backNo} ${p.eccentricityMm.toFixed(0)} mm`).join(', ');
+      issues.push({ code: 'B02', level: 'W', pier: input.name, message: `일체를 골랐지만 편심이 100 mm를 넘는 쌍이 있어 분리로 계산합니다 (${worst || '쌍 없음'}).` });
+    } else {
+      issues.push({ code: 'B01', level: 'I', pier: input.name, message: '일체 배치: 블록 형상은 아직 분리 기준으로 계산합니다 (일체 블록 모델은 다음 단계).' });
+    }
+  }
 }