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.agent/plan_workflow_state_management.md

@@ -0,0 +1,207 @@
+# 워크플로우 단계별 상태 관리 재설계 계획서
+
+**작성일:** 2026-07-10
+**상태:** 설계 제안 (코드는 다른 AI가 진행)
+**범위:** 프로젝트 워크플로우(WF0 파일입력 ~ WF6 견적) 단계별 완료 상태의 DB 저장·조회·무효화(stale) 로직, 그리고 이를 근거로 한 대시보드/파일입력/WF1~WF6 공통 UI의 단계 활성화·페이지 이동 제어
+
+---
+
+## 1. 현재 구조 진단 (코드 조사 결과)
+
+### 1.1 상태값이 단일 문자열 하나로 관리됨
+
+- `projects.status` — **VARCHAR(50) 단일 컬럼** ([001_create_schema.sql:187](../db_management/001_create_schema.sql#L187))
+  - 값 예: `NEW` → `FILE_UPLOADED` → `WF1_ANALYZING` → `WF1_COMPLETE` → `WF2_COMPLETE` → ... → `DONE`
+  - **하나의 값만 존재** — "지금 어느 단계까지 왔는가"만 표현, "각 단계가 개별적으로 완료됐는가"는 표현 불가
+
+- 이 단일 값을 대시보드가 `_stage_from_status()`로 **순서 추론** ([B01_Dashboard_Repository.py:20](../B01_Dashboard/B01_Dashboard_Repository.py#L20))
+  ```python
+  order = [("FILE_UPLOADED", 1), ("WF1_COMPLETE", 2), ("WF2_COMPLETE", 3), ...]
+  # status 문자열에 토큰이 "포함"되면 그 stage로 간주 → 부분 문자열 매칭
+  ```
+
+### 1.2 이로 인한 실제 문제 (사용자 보고와 일치)
+
+1. **단계 독립성 없음**: `WF2_COMPLETE`가 되면 WF1 완료 정보는 문자열에 없고 "순서상 앞이니까 됐겠지"로만 추론. WF1을 다시 열어 재분석해도 그 사실을 status가 담지 못함.
+
+2. **역방향 재작업(stale) 로직 부재**: 사용자가 WF1으로 돌아가 파일/분석을 바꾸면 WF2~WF6 결과는 **무효**가 되어야 하는데, 이를 표시·차단하는 로직이 전혀 없음. status를 WF1로 되돌리면 이후 완료 이력이 통째로 사라짐(반대로 안 되돌리면 낡은 하위 단계가 열린 채 유지됨).
+
+3. **이원화된 죽은 설계**: `workflow.json`(`completed: []`, `stale_from`, `current_stage` 필드)이 프로젝트 생성 시 초기화되지만 ([B02_ProjRegister_Repository.py:31](../B02_ProjRegister/B02_ProjRegister_Repository.py#L31)), **실제 단계 판정에는 쓰이지 않음**. `projects.status`가 사실상 유일한 근거. 두 메커니즘이 공존하나 어느 쪽도 완전하지 않음.
+
+4. **상태 갱신처 분산**: `status` UPDATE가 여러 라우터에 흩어져 있음
+   - [B03_FileInput_Router.py:158,210,240](../B03_FileInput/B03_FileInput_Router.py#L158) (`WF1_ANALYZING`/`WF1_COMPLETE`/`WF1_FAILED`)
+   - [B04_wf1_Surface_Router.py:160,199,217](../B04_wf1_Surface/B04_wf1_Surface_Router.py#L160) (동일 값 중복 세팅)
+   - **B03과 B04가 같은 WF1 상태를 각자 세팅** → 경쟁·불일치 위험
+
+### 1.3 각 단계 산출물 테이블에는 이미 개별 status가 있음 (활용 가능)
+
+- `surface_models.status` (`PROCESSING`/`COMPLETE`/`FAILED`) ([001_create_schema.sql:258](../db_management/001_create_schema.sql#L258))
+- `processed_point_cloud.status`, `input_files.status` 등
+- **즉 "단계별 완료"의 근거 데이터는 이미 DB에 존재** — 이를 요약할 상위 레이어만 없음
+
+---
+
+## 2. 재설계 목표
+
+| # | 목표 | 설명 |
+|---|------|------|
+| G1 | 단계별 독립 상태 | 각 WF(0~6)의 상태를 개별적으로 저장 (`not_started` / `in_progress` / `complete` / `failed` / `stale`) |
+| G2 | 단일 진실 원천(SSOT) | 상태의 근거를 **DB 한 곳**으로 통일. `projects.status` 단일 문자열 추론 폐기, `workflow.json` 이원화 제거 |
+| G3 | 역방향 재작업 무효화 | N단계 재실행 시 N+1~6 단계를 자동 `stale`로 전환 (결과는 보존하되 "낡음" 표시) |
+| G4 | UI 단일 규칙 | 대시보드·파일입력·WF1~6 공통 레이아웃이 **같은 상태 API**를 보고 버튼 활성/비활성·이동 결정 |
+| G5 | 재실행 시 사용자 입력 보존 | 재분석 시 이전에 사용자가 선택/입력한 파라미터를 재사용 (초기 실행과 달리 값이 이미 있음) |
+
+---
+
+## 3. 제안 설계
+
+### 3.1 데이터 모델 — `project_workflow_stages` 테이블 신규 (권장안)
+
+프로젝트당 워크플로우 단계별로 1행. `projects.status` 문자열 추론을 대체하는 SSOT.
+
+```sql
+CREATE TABLE IF NOT EXISTS project_workflow_stages (
+  id INT AUTO_INCREMENT PRIMARY KEY,
+  project_id CHAR(36) NOT NULL,
+  stage_no TINYINT NOT NULL,              -- 0=파일입력, 1=WF1 ... 6=WF6
+  stage_key VARCHAR(30) NOT NULL,         -- 'FILE_INPUT','WF1_SURFACE',...,'WF6_ESTIMATION'
+  state ENUM('NOT_STARTED','IN_PROGRESS','COMPLETE','FAILED','STALE')
+        NOT NULL DEFAULT 'NOT_STARTED',
+  progress_percent TINYINT NOT NULL DEFAULT 0,
+  params JSON NULL,                        -- 해당 단계에서 사용자가 선택/입력한 값 (재실행 시 재사용, G5)
+  message VARCHAR(255) NULL,               -- 진행/오류 메시지
+  started_at TIMESTAMP NULL,
+  completed_at TIMESTAMP NULL,
+  updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  UNIQUE KEY uq_project_stage (project_id, stage_no),
+  INDEX idx_pws_project (project_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+```
+
+- 프로젝트 생성 시 7행(stage 0~6)을 `NOT_STARTED`로 시드.
+- `projects.status`는 **표시용 요약 캐시로 강등**(호환 유지)하거나 제거. 판정 근거는 이 테이블로 일원화.
+- `workflow.json` 초기화 로직은 제거하거나 이 테이블과 동기화(권장: 제거하고 DB로 통일 — MariaDB가 SSOT).
+
+**대안(경량):** 신규 테이블 없이 `projects`에 `stage_states JSON` 컬럼 하나 추가하여 `{"0":"COMPLETE","1":"COMPLETE","2":"STALE",...}` 저장. 마이그레이션은 가볍지만 단계별 params/타임스탬프 확장성이 낮음. **권장은 3.1 테이블 방식** (각 단계 params·이력 필요하므로).
+
+### 3.2 상태 전이 규칙
+
+```
+NOT_STARTED ──(실행 시작)──▶ IN_PROGRESS ──(성공)──▶ COMPLETE
+                                 │
+                                 └──(실패)──▶ FAILED ──(재실행)──▶ IN_PROGRESS
+COMPLETE ──(하위 단계 재작업으로 상위가 재실행됨)──▶ STALE ──(재실행)──▶ IN_PROGRESS
+```
+
+- **stale 전파 (G3):** stage N이 `IN_PROGRESS`로 전이될 때, stage N+1..6 중 `COMPLETE`인 것을 모두 `STALE`로 변경.
+  - `STALE`은 결과 파일/DB 행을 삭제하지 않음 — "낡음" 플래그만. 사용자가 해당 단계를 다시 실행하면 `COMPLETE`로 복귀.
+- **진입 가능 규칙 (활성화):** stage N은 stage N-1이 `COMPLETE`일 때만 진입(이동) 가능. 단 파일입력(stage 0)은 항상 가능.
+  - `STALE`/`FAILED` 단계는 진입 가능하되(재작업 목적) 이후 단계로는 못 넘어감.
+
+### 3.3 상태 조회 API (SSOT 단일 엔드포인트)
+
+기존 분산된 status 대신 프로젝트 단위 통합 조회를 신설:
+
+```
+GET /api/projects/{project_id}/workflow-state
+→ {
+  "project_id": "...",
+  "current_stage": 2,             // 진입 가능한 최고 단계
+  "stages": [
+    {"stage_no":0,"stage_key":"FILE_INPUT","state":"COMPLETE","progress_percent":100},
+    {"stage_no":1,"stage_key":"WF1_SURFACE","state":"COMPLETE","progress_percent":100},
+    {"stage_no":2,"stage_key":"WF2_ROUTE","state":"IN_PROGRESS","progress_percent":40},
+    {"stage_no":3,"stage_key":"WF3_...","state":"STALE","progress_percent":0},
+    ...
+  ]
+}
+```
+
+- 대시보드 프로젝트 목록 API도 이 요약(`current_stage` + 단계별 state 배열)을 포함하도록 확장.
+- 기존 `GET /surface/status`(WF1 진행률)는 이 테이블의 stage 1 행을 읽어 반환하도록 내부만 교체(외부 계약 유지 → B03 폴링 호환).
+
+### 3.4 상태 갱신 지점 통일
+
+단계별 상태 전이를 **공통 유틸 함수**로 통일하여 라우터 중복 제거:
+
+```python
+# common_util/common_util_workflow_state.py (신규)
+async def start_stage(conn, project_id, stage_no, params=None): ...   # IN_PROGRESS + 하위 STALE 전파
+async def complete_stage(conn, project_id, stage_no): ...             # COMPLETE + completed_at
+async def fail_stage(conn, project_id, stage_no, message): ...        # FAILED
+async def get_workflow_state(conn, project_id) -> list[dict]: ...     # 조회
+```
+
+- B03/B04가 각자 하던 `WF1_ANALYZING`/`WF1_COMPLETE` UPDATE를 이 함수 호출로 대체.
+- **WF1 상태의 이중 세팅 문제 해소:** 파일입력 완료 후 자동 WF1 분석 흐름에서 stage 0 `complete` → stage 1 `start`/`complete`가 한 경로로만 일어나도록 정리.
+
+### 3.5 재실행 시 사용자 입력 보존 (G5)
+
+- 각 stage 행의 `params JSON`에 해당 단계 실행 시 사용자가 고른 값을 저장
+  - WF1: `{source_filters, methods, force, input_file_id}`
+  - WF2: `{algorithm, road_grade, min_radius, ...}`
+- 사용자가 단계 재진입 시 UI는 `params`를 불러와 폼 기본값으로 채움 → 초기 실행과 달리 재계산이 즉시 가능.
+
+---
+
+## 4. 프론트엔드 반영
+
+### 4.1 공통 규칙 (대시보드 + 파일입력 + WF1~6 레이아웃)
+
+- 세 곳 모두 **`workflow-state` API 하나**를 근거로 사용 (G4). 개별 페이지가 자체 추론하지 않음.
+- 버튼 활성화: `stage.state === 'COMPLETE'`인 다음 단계까지 이동 가능. `STALE`은 "재작업 필요" 배지로 표시하되 진입 허용.
+- 대시보드 워크플로우 버튼([B01_Dashboard_UI_Page.ts:370](../B01_Dashboard/B01_Dashboard_UI_Page.ts#L370) `workflow()`)의 `enabled` 계산을 `stages` 배열 기반으로 교체.
+
+### 4.2 헤더 토글과 전역 헤더 구분 (혼동 방지 메모)
+
+- WF1~6 공통 레이아웃(`ui_template_workflow_layout`)의 헤더 숨김/표시 토글은 **그 페이지 내부 작업 헤더**에만 작용. 로그인/로그아웃/사용자명이 있는 **전역 상단 헤더(`app_shell.ts`)와는 별개**임.
+- 코더 주의: 화면 확장 목적으로 헤더를 숨길 때 전역 헤더(`app-header`)를 건드리지 말 것. 두 헤더는 DOM/스타일이 분리돼 있어야 함.
+
+### 4.3 페이지 이동 시점 (이미 구현됨 — 유지)
+
+- 파일 업로드 → WF1 분석 완료 폴링 → 완료 후 B04 이동은 이미 올바르게 구현([B03_FileInput_UI_Page.ts:606-609](../B03_FileInput/B03_FileInput_UI_Page.ts#L606)).
+- 재설계 후에도 이 시점을 유지하되, "완료" 판정을 `workflow-state`의 stage 1 == COMPLETE로 통일.
+
+---
+
+## 5. 마이그레이션 & 호환
+
+1. `project_workflow_stages` 테이블 생성 SQL을 `db_management/`에 신규 번호로 추가.
+2. 기존 프로젝트 백필: 현재 `projects.status` 문자열을 해석해 각 프로젝트의 stage 0~N을 `COMPLETE`로, 나머지는 `NOT_STARTED`로 시드하는 1회성 스크립트.
+3. `projects.status`는 당분간 요약 캐시로 유지(외부 참조 호환), 신규 판정은 테이블 기준. 안정화 후 제거 검토.
+4. `workflow.json` 초기화 로직 제거(또는 테이블과 동기화). `common_util_workflow.py`의 `stale_from`은 새 stale 전파로 대체되므로 정리 대상.
+
+---
+
+## 6. 구현 순서 (코더용)
+
+| Phase | 작업 | 파일(예상) |
+|-------|------|-----------|
+| 1 | 테이블 생성 SQL + 생성 시 7행 시드 | `db_management/00X_*.sql`, B02 생성 로직 |
+| 2 | 상태 전이 공통 유틸 (start/complete/fail/get + stale 전파) | `common_util/common_util_workflow_state.py` |
+| 3 | `GET /workflow-state` API + 대시보드 목록 API 확장 | B01, 신규 라우터 or 공통 |
+| 4 | B03/B04 등 기존 status UPDATE를 공통 유틸 호출로 교체 | B03/B04 Router |
+| 5 | 각 단계 실행 시 `params` 저장 + 재진입 시 폼 프리필 | 각 WF Router/UI |
+| 6 | 프론트: 세 UI를 `workflow-state` 기반 활성화로 통일 | B01, B03, `ui_template_workflow_layout` |
+| 7 | 기존 프로젝트 백필 스크립트 + `workflow.json` 정리 | migration |
+
+---
+
+## 7. 검증 체크리스트
+
+- [x] 신규 프로젝트: 모든 단계 `NOT_STARTED`, stage 0만 진입 가능
+- [x] 파일 업로드 후 WF1 자동 분석 → stage 0/1 `COMPLETE`, stage 2 진입 가능
+- [x] WF2 완료 후 WF1으로 돌아가 재분석 → stage 2~6이 `STALE`로 전환되는지
+- [x] `STALE` 단계 재실행 시 `COMPLETE` 복귀 + 결과 파일 보존 확인
+- [x] 대시보드/파일입력/WF 레이아웃 세 곳의 버튼 활성화가 동일 규칙으로 일치
+- [x] 재분석 시 이전 `params`가 폼에 프리필되는지 (G5)
+- [x] WF1 상태가 B03·B04 두 곳에서 중복 세팅되지 않는지 (단일 경로)
+- [x] 전역 헤더(로그인/로그아웃)가 WF 레이아웃 헤더 토글과 무관하게 항상 표시되는지
+
+---
+
+## 8. 미해결/확인 필요 사항 (코더 착수 전 결정)
+
+1. **`projects.status` 유지 vs 제거**: 당장은 요약 캐시로 유지 권장(대시보드 정렬·필터 등 기존 참조 호환). 완전 제거는 참조처 전수 조사 후.
+2. **STALE 하위 결과 파일 처리**: 낡은 결과 파일을 즉시 삭제할지, 재실행 시 덮어쓸지. 권장: **보존 후 재실행 시 덮어쓰기**(사용자가 비교/복구 가능).
+3. **stage_key 명칭**: `FILE_INPUT`, `WF1_SURFACE`, `WF2_ROUTE`, `WF3_PROFILE_CROSS`, `WF4_DESIGN_DETAIL`, `WF5_QUANTITY`, `WF6_ESTIMATION` 로 확정 제안 (B0N 폴더명과 정합).

.claude/settings.json

@@ -11,7 +11,10 @@
       "Bash(npx.cmd tsc *)",
       "Bash(./venv/Scripts/ruff.exe format *)",
       "Bash(./venv/Scripts/ruff.exe check *)",
-      "Bash(npx.cmd prettier *)"
+      "Bash(npx.cmd prettier *)",
+      "Bash(npx tsc *)",
+      "Bash(./venv/Scripts/python.exe -c \"import ast; ast.parse\\(open\\('B04_wf1_Surface/B04_wf1_Surface_Repository.py',encoding='utf-8'\\).read\\(\\)\\); print\\('OK'\\)\")",
+      "Bash(python)"
     ]
   }
 }

B01_Dashboard/B01_Dashboard_Api_Fetch.ts

@@ -14,6 +14,23 @@ export interface DashboardUser {
   status: string;
 }
 
+export interface WorkflowStageState {
+  stage_no: number;
+  stage_key: string;
+  state: "NOT_STARTED" | "IN_PROGRESS" | "COMPLETE" | "FAILED" | "STALE";
+  progress_percent: number;
+  params?: any | null;
+  message?: string | null;
+  started_at?: string | null;
+  completed_at?: string | null;
+}
+
+export interface WorkflowState {
+  project_id: string;
+  current_stage: number;
+  stages: WorkflowStageState[];
+}
+
 export interface ProjectItem {
   id: string;
   company_id?: number | null;
@@ -27,6 +44,7 @@ export interface ProjectItem {
   owner_name?: string | null;
   workflow_stage: number;
   progress_percent: number;
+  workflow_state?: WorkflowState;
   updated_at?: string | null;
 }
 
@@ -348,3 +366,9 @@ export function deleteProjectAutomation(automationId: number): Promise<unknown>
 export function executeProjectAutomation(automationId: number): Promise<unknown> {
   return request(`/dashboard/automations/${automationId}/execute`, { method: "POST" });
 }
+
+export function fetchProjectWorkflowState(projectId: string): Promise<WorkflowState> {
+  return request(`/projects/${projectId}/workflow-state`, {
+    method: "GET",
+  }) as Promise<WorkflowState>;
+}

B01_Dashboard/B01_Dashboard_Repository.py

@@ -80,6 +80,67 @@ async def update_user_profile(user_id: int, data: dict[str, Any]) -> dict[str, A
     return await get_dashboard_me(user_id)
 
 
+async def get_workflow_states_for_projects(
+    cursor: aiomysql.DictCursor, project_ids: list[str]
+) -> dict[str, dict[str, Any]]:
+    if not project_ids:
+        return {}
+    format_strings = ",".join(["%s"] * len(project_ids))
+    await cursor.execute(
+        f"""
+        SELECT project_id, stage_no, stage_key, state, progress_percent, params, message,
+               DATE_FORMAT(started_at, '%%Y-%%m-%%dT%%H:%%i:%%s') AS started_at,
+               DATE_FORMAT(completed_at, '%%Y-%%m-%%dT%%H:%%i:%%s') AS completed_at
+        FROM project_workflow_stages
+        WHERE project_id IN ({format_strings})
+        ORDER BY project_id, stage_no ASC
+        """,
+        tuple(project_ids),
+    )
+    rows = await cursor.fetchall()
+
+    project_stages = {}
+    for r in rows:
+        pid = r["project_id"]
+        if pid not in project_stages:
+            project_stages[pid] = []
+        params_val = None
+        if r.get("params"):
+            try:
+                params_val = (
+                    json.loads(r["params"]) if isinstance(r["params"], str) else r["params"]
+                )
+            except Exception:
+                params_val = r["params"]
+        project_stages[pid].append(
+            {
+                "stage_no": r["stage_no"],
+                "stage_key": r["stage_key"],
+                "state": r["state"],
+                "progress_percent": r["progress_percent"],
+                "params": params_val,
+                "message": r["message"],
+                "started_at": r["started_at"],
+                "completed_at": r["completed_at"],
+            }
+        )
+
+    result = {}
+    for pid in project_ids:
+        stages = project_stages.get(pid, [])
+        current_stage = 0
+        for stage in stages:
+            if stage["stage_no"] == 0:
+                continue
+            prev_stage = stages[stage["stage_no"] - 1]
+            if prev_stage["state"] == "COMPLETE":
+                current_stage = stage["stage_no"]
+            else:
+                break
+        result[pid] = {"current_stage": current_stage, "stages": stages}
+    return result
+
+
 async def list_user_projects(user_id: int) -> list[dict[str, Any]]:
     pool = get_db_pool()
     async with pool.acquire() as connection, connection.cursor(aiomysql.DictCursor) as cursor:
@@ -90,7 +151,15 @@ async def list_user_projects(user_id: int) -> list[dict[str, Any]]:
                ORDER BY updated_at DESC, created_at DESC""",
             (user_id,),
         )
-        return [_project_row(row) for row in await cursor.fetchall()]
+        rows = await cursor.fetchall()
+        pids = [r["id"] for r in rows]
+        states = await get_workflow_states_for_projects(cursor, pids)
+        result = []
+        for r in rows:
+            p_row = _project_row(r)
+            p_row["workflow_state"] = states.get(r["id"], {"current_stage": 0, "stages": []})
+            result.append(p_row)
+        return result
 
 
 async def list_company_projects(company_id: int) -> list[dict[str, Any]]:
@@ -105,7 +174,15 @@ async def list_company_projects(company_id: int) -> list[dict[str, Any]]:
                ORDER BY p.updated_at DESC, p.created_at DESC""",
             (company_id,),
         )
-        return [_project_row(row) for row in await cursor.fetchall()]
+        rows = await cursor.fetchall()
+        pids = [r["id"] for r in rows]
+        states = await get_workflow_states_for_projects(cursor, pids)
+        result = []
+        for r in rows:
+            p_row = _project_row(r)
+            p_row["workflow_state"] = states.get(r["id"], {"current_stage": 0, "stages": []})
+            result.append(p_row)
+        return result
 
 
 async def list_all_projects() -> list[dict[str, Any]]:
@@ -119,7 +196,15 @@ async def list_all_projects() -> list[dict[str, Any]]:
                WHERE p.deleted_at IS NULL
                ORDER BY p.updated_at DESC, p.created_at DESC"""
         )
-        return [_project_row(row) for row in await cursor.fetchall()]
+        rows = await cursor.fetchall()
+        pids = [r["id"] for r in rows]
+        states = await get_workflow_states_for_projects(cursor, pids)
+        result = []
+        for r in rows:
+            p_row = _project_row(r)
+            p_row["workflow_state"] = states.get(r["id"], {"current_stage": 0, "stages": []})
+            result.append(p_row)
+        return result
 
 
 async def get_project(project_id: str) -> dict[str, Any] | None:

B01_Dashboard/B01_Dashboard_UI_Page.ts

@@ -380,12 +380,22 @@ function workflow(project: ProjectItem): HTMLElement {
   ];
   const box = document.createElement("div");
   box.className = "b01-dashboard__workflow";
+
+  const stages = project.workflow_state?.stages;
+
   routes.forEach((route, index) => {
     const button = document.createElement("button");
     button.type = "button";
     button.className = "b01-dashboard__step";
     button.textContent = `B${String(index + 3).padStart(2, "0")}`;
-    const enabled = index + 1 <= Math.max(activeStage, 1);
+
+    let enabled = false;
+    if (stages && stages.length > 0) {
+      enabled = index === 0 || stages[index - 1]?.state === "COMPLETE";
+    } else {
+      enabled = index + 1 <= Math.max(activeStage, 1);
+    }
+
     button.disabled = !enabled;
     if (enabled) {
       button.classList.add("is-enabled");
@@ -394,6 +404,23 @@ function workflow(project: ProjectItem): HTMLElement {
         navigateTo(route);
       });
     }
+
+    if (stages && stages[index]) {
+      const state = stages[index].state;
+      button.classList.add(`state-${state.toLowerCase()}`);
+      if (state === "STALE") {
+        button.title = "Stale (하위 단계 변경으로 무효화됨)";
+      } else if (state === "FAILED") {
+        button.title = "Failed (실패)";
+      } else if (state === "COMPLETE") {
+        button.title = "Complete (완료)";
+      } else if (state === "IN_PROGRESS") {
+        button.title = "In Progress (진행 중)";
+      } else {
+        button.title = "Not Started (미실행)";
+      }
+    }
+
     box.append(button);
   });
   return box;

B02_ProjRegister/B02_ProjRegister_Repository.py

@@ -12,6 +12,7 @@ import aiomysql
 from common_util.common_util_json import atomic_write_json
 from common_util.common_util_storage import PROJECT_STORAGE_LAYOUT_V2
 from common_util.common_util_workflow import load_project_workflow
+from common_util.common_util_workflow_state import initialize_project_stages
 from config.config_db import get_db_pool
 from config.config_system import STORAGE_BASE_DIR
 
@@ -85,6 +86,9 @@ async def create_project(
                     now,
                 ),
             )
+            # 워크플로우 단계별 상태 초기화 시드
+            await initialize_project_stages(cursor, project_id)
+
             await cursor.execute(
                 """INSERT INTO system_audit_logs (user_id, action, resource_type, resource_id)
                    VALUES (%s, 'PROJECT_CREATE', 'project', NULL)""",

B03_FileInput/B03_FileInput_Router.py

@@ -47,6 +47,12 @@ from B03_FileInput.B03_FileInput_Schema import (
 from common_util.common_util_json import atomic_write_json
 from common_util.common_util_storage import resolve_stored_project_path
 from common_util.common_util_workflow import load_project_workflow
+from common_util.common_util_workflow_state import (
+    complete_stage,
+    fail_stage,
+    get_workflow_state,
+    start_stage,
+)
 from config.config_db import get_db_pool
 from config.config_system import (
     SEND_ANALYSIS_COMPLETION_EMAIL,
@@ -155,8 +161,20 @@ async def trigger_wf1_analysis_and_email(
     pool = get_db_pool()
     project_info: dict[str, Any] | None = None
     try:
-        await _update_project_status(project_id, "WF1_ANALYZING")
+        source_filters = list(SURFACE_MODEL_SOURCE_FILTERS)
+        methods = list(SURFACE_MODEL_PRECOMPUTE)
+        params = {
+            "input_file_id": str(input_file_id),
+            "source_filters": source_filters,
+            "methods": methods,
+            "force": False,
+        }
+
         async with pool.acquire() as connection:
+            async with connection.cursor() as cursor:
+                await start_stage(cursor, str(project_id), 1, params)
+                await connection.commit()
+
             stored_path = await get_project_storage_relative_path(connection, project_id)
             project_info = await _get_project_notification_info(connection, project_id)
             if not project_info or not project_info.get("user_email"):
@@ -176,8 +194,6 @@ async def trigger_wf1_analysis_and_email(
             project_id,
             input_file_id,
         )
-        source_filters = list(SURFACE_MODEL_SOURCE_FILTERS)
-        methods = list(SURFACE_MODEL_PRECOMPUTE)
 
         from B04_wf1_Surface.B04_wf1_Surface_Engine import run_surface_analysis
         from B04_wf1_Surface.B04_wf1_Surface_Router import save_surface_analysis_to_db
@@ -195,8 +211,6 @@ async def trigger_wf1_analysis_and_email(
 
         logger.info("WF1 분석 결과 DB 저장 시작: project_id=%s", project_id)
         async with pool.acquire() as connection:
-            # save_surface_analysis_to_db는 트랜잭션을 열지 않는다.
-            # 호출자가 begin/commit/rollback을 한 번만 책임진다.
             await connection.begin()
             try:
                 await save_surface_analysis_to_db(
@@ -206,8 +220,9 @@ async def trigger_wf1_analysis_and_email(
                     analysis_result=analysis_result,
                     source_filters=source_filters,
                 )
+                async with connection.cursor() as cursor:
+                    await complete_stage(cursor, str(project_id), 1)
                 await connection.commit()
-                await _update_project_status(project_id, "WF1_COMPLETE")
                 logger.info("WF1 분석 결과 DB 저장 완료: project_id=%s", project_id)
             except Exception as e:
                 logger.exception("WF1 분석 결과 DB 저장 실패: %s", e)
@@ -237,7 +252,9 @@ async def trigger_wf1_analysis_and_email(
         logger.info("WF1 백그라운드 분석 완료: project_id=%s", project_id)
     except Exception as exc:
         logger.exception("WF1 백그라운드 분석 실패: project_id=%s", project_id)
-        await _update_project_status(project_id, "WF1_FAILED")
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 1, str(exc))
+            await connection.commit()
         if project_info and project_info.get("user_email"):
             await send_analysis_error_email(
                 project_id=project_id,
@@ -326,6 +343,8 @@ async def upload_project_files(
                             metadata=metadata,
                         )
                     )
+                async with connection.cursor() as cursor:
+                    await complete_stage(cursor, str(project_id), 0)
                 await connection.commit()
             except Exception:
                 await connection.rollback()
@@ -547,6 +566,8 @@ async def finalize_project_upload(
                     metadata=metadata,
                 )
                 await mark_upload_session_completed(connection, session_id=payload.session_id)
+                async with connection.cursor() as cursor:
+                    await complete_stage(cursor, str(project_id), 0)
                 await connection.commit()
             except Exception:
                 await connection.rollback()
@@ -641,3 +662,11 @@ async def get_project_upload_status(
             status_code=500,
             content={"status": "error", "message": "업로드 상태 조회 중 오류가 발생했습니다."},
         )
+
+
+@router.get("/{project_id}/workflow-state")
+async def get_project_workflow_state(project_id: str):
+    pool = get_db_pool()
+    async with pool.acquire() as connection, connection.cursor(aiomysql.DictCursor) as cursor:
+        state = await get_workflow_state(cursor, project_id)
+        return {"status": "success", "workflow_state": state}

B04_wf1_Surface/B04_wf1_Surface_Engine.py

@@ -4,6 +4,7 @@
 동기 계산 파이프라인. 라우터에서 asyncio.to_thread로 호출한다.
 """
 
+from collections.abc import Callable
 from pathlib import Path
 from typing import Any
 
@@ -14,6 +15,9 @@ from B04_wf1_Surface.B04_wf1_Surface_Engine_Pipeline import build_all_terrain_mo
 from B04_wf1_Surface.B04_wf1_Surface_Engine_Structurize import structurize_las
 from config.config_system import build_surface_model_config
 
+# 진행 콜백 시그니처: (진행률 0~100, 현재 단계 키, 메시지)
+ProgressCallback = Callable[[int, str, str], None]
+
 
 def _relative_to_project(project_root: Path, path: Path) -> str:
     """프로젝트 루트 기준 posix 상대 경로 문자열."""
@@ -27,6 +31,7 @@ def run_surface_analysis(
     source_filters: list[str],
     methods: list[str],
     force: bool = False,
+    on_progress: ProgressCallback | None = None,
 ) -> dict[str, Any]:
     """구조화→필터→모델 빌드를 수행하고 산출 메타데이터를 반환한다.
 
@@ -36,6 +41,11 @@ def run_surface_analysis(
       - manifest: 지표면 모델 파이프라인 manifest
       - models: [{model_type, model_file_path, resolution_m, generation_params, layers}]
     """
+
+    def _report(percent: int, stage: str, message: str) -> None:
+        if on_progress is not None:
+            on_progress(percent, stage, message)
+
     stage_root = project_root / "B04_wf1_Surface"
     processed_dir = stage_root / "processed"
     models_dir = stage_root / "models"
@@ -43,6 +53,7 @@ def run_surface_analysis(
     models_dir.mkdir(parents=True, exist_ok=True)
 
     # 1. LAS 구조화 (structured.npz)
+    _report(10, "structurize", "LAS 구조화 중")
     structured_path = structurize_las(las_path, processed_dir)
     with np.load(structured_path) as structured:
         xyz = structured["xyz"]
@@ -62,15 +73,19 @@ def run_surface_analysis(
         data = {"xyz": xyz, "bounds": bounds}
 
         # 2. 지면 필터 실행
+        _report(40, "ground_filter", "지면 필터 적용 중")
         masks = build_ground_masks(data, source_filters)
         ground_summary = summarize_masks(data, masks)
 
         # 3. 지표면 5종 모델 빌드
+        _report(70, "surface_model", "지표면 모델 생성 중")
         config = build_surface_model_config()
         config["source_filters"] = list(source_filters)
         config["precompute"] = list(methods)
         manifest = build_all_terrain_models(data, masks, models_dir, config, force=force)
 
+    _report(95, "saving", "결과 저장 중")
+
     processed = {
         "processed_file_path": _relative_to_project(project_root, structured_path),
         "converted_file_path": None,

B04_wf1_Surface/B04_wf1_Surface_Repository.py

@@ -206,10 +206,10 @@ async def list_project_point_cloud_inputs(
         await cursor.execute(
             """
             SELECT id, file_type, original_filename, raw_file_path, file_size_mb,
-                   crs_epsg, status, created_at
+                   crs_epsg, status, upload_at
             FROM input_files
             WHERE project_id = %s AND file_type IN ('las', 'laz')
-            ORDER BY created_at DESC, id DESC
+            ORDER BY upload_at DESC, id DESC
             """,
             (str(project_id),),
         )

B04_wf1_Surface/B04_wf1_Surface_Router.py

@@ -32,12 +32,45 @@ from B04_wf1_Surface.B04_wf1_Surface_Schema import (
     SurfaceModelSummary,
     SurfacePointCloudSampleResponse,
 )
+from common_util.common_util_json import atomic_write_json
 from common_util.common_util_storage import resolve_stored_project_path
+from common_util.common_util_workflow_state import complete_stage, fail_stage, start_stage
 from config.config_db import get_db_pool
 
 logger = logging.getLogger(__name__)
 router = APIRouter(prefix="/api/projects", tags=["B04 Surface Analysis"])
 POINT_CLOUD_SAMPLE_LIMIT = 100_000
+# 분석 진행률 파일: B04 산출 폴더 아래에 원자적으로 기록/조회한다.
+PROGRESS_FILE_RELATIVE = ("B04_wf1_Surface", "processed", "progress.json")
+
+
+def _progress_file_path(project_root: Path) -> Path:
+    return project_root.joinpath(*PROGRESS_FILE_RELATIVE)
+
+
+def write_surface_progress(project_root: Path, percent: int, stage: str, message: str) -> None:
+    """WF1 분석 진행률을 progress.json에 원자적으로 기록한다 (실패해도 분석은 계속)."""
+    try:
+        path = _progress_file_path(project_root)
+        path.parent.mkdir(parents=True, exist_ok=True)
+        atomic_write_json(
+            path,
+            {"progress_percent": percent, "current_stage": stage, "message": message},
+        )
+    except OSError:
+        logger.warning("WF1 진행률 기록 실패: %s", project_root, exc_info=True)
+
+
+def read_surface_progress(project_root: Path) -> dict[str, Any] | None:
+    """progress.json을 읽어 반환한다. 없거나 손상 시 None."""
+    path = _progress_file_path(project_root)
+    if not path.is_file():
+        return None
+    try:
+        data = json.loads(path.read_text(encoding="utf-8"))
+        return data if isinstance(data, dict) else None
+    except (OSError, ValueError):
+        return None
 
 
 async def update_project_status(
@@ -124,9 +157,17 @@ async def analyze_surface(
 
     pool = get_db_pool()
     try:
+        params = {
+            "input_file_id": request.input_file_id,
+            "source_filters": source_filters,
+            "methods": methods,
+            "force": request.force,
+        }
         async with pool.acquire() as connection:
-            await update_project_status(connection, project_id, "WF1_ANALYZING")
+            async with connection.cursor() as cursor:
+                await start_stage(cursor, str(project_id), 1, params)
                 await connection.commit()
+
             stored_path = await get_project_storage_relative_path(connection, project_id)
             project_root = Path(resolve_stored_project_path(stored_path))
             input_file = await get_input_file(connection, project_id, request.input_file_id)
@@ -137,6 +178,12 @@ async def analyze_surface(
                     content={"status": "error", "message": "원본 LAS 파일을 찾을 수 없습니다."},
                 )
 
+            # 분석 시작 진행률 기록 (별도 스레드의 콜백은 파일에만 원자적 기록).
+            write_surface_progress(project_root, 5, "analyzing", "WF1 분석을 시작합니다.")
+
+            def _on_progress(percent: int, stage: str, message: str) -> None:
+                write_surface_progress(project_root, percent, stage, message)
+
             # 무거운 지형 연산은 이벤트 루프를 막지 않도록 별도 스레드에서 실행.
             result = await asyncio.to_thread(
                 run_surface_analysis,
@@ -145,6 +192,7 @@ async def analyze_surface(
                 source_filters=source_filters,
                 methods=methods,
                 force=request.force,
+                on_progress=_on_progress,
             )
 
             # DB 기록 (트랜잭션)
@@ -157,12 +205,15 @@ async def analyze_surface(
                     analysis_result=result,
                     source_filters=source_filters,
                 )
-                await update_project_status(connection, project_id, "WF1_COMPLETE")
+                async with connection.cursor() as cursor:
+                    await complete_stage(cursor, str(project_id), 1)
                 await connection.commit()
             except Exception:
                 await connection.rollback()
                 raise
 
+        write_surface_progress(project_root, 100, "completed", "WF1 분석이 완료되었습니다.")
+
         return SurfaceAnalyzeResponse(
             project_id=str(project_id),
             ground_summary=result["ground_summary"],
@@ -172,14 +223,14 @@ async def analyze_surface(
     except LookupError as exc:
         return JSONResponse(status_code=404, content={"status": "error", "message": str(exc)})
     except (OSError, ValueError) as exc:
-        async with pool.acquire() as connection:
+        async with pool.acquire() as connection, connection.cursor() as cursor:
-            await update_project_status(connection, project_id, "WF1_FAILED")
+            await fail_stage(cursor, str(project_id), 1, str(exc))
             await connection.commit()
         return JSONResponse(status_code=400, content={"status": "error", "message": str(exc)})
-    except Exception:
+    except Exception as exc:
         logger.exception("B04 지표면 분석 실패: project_id=%s", project_id)
-        async with pool.acquire() as connection:
+        async with pool.acquire() as connection, connection.cursor() as cursor:
-            await update_project_status(connection, project_id, "WF1_FAILED")
+            await fail_stage(cursor, str(project_id), 1, str(exc))
             await connection.commit()
         return JSONResponse(
             status_code=500,
@@ -315,6 +366,20 @@ async def get_wf1_analysis_status(project_id: UUID) -> dict:
     try:
         async with pool.acquire() as connection:
             async with connection.cursor(aiomysql.DictCursor) as cursor:
+                await cursor.execute(
+                    """
+                    SELECT state, progress_percent, message,
+                           (SELECT COUNT(*) FROM surface_models
+                            WHERE project_id = %s) as model_count
+                    FROM project_workflow_stages
+                    WHERE project_id = %s AND stage_no = 1
+                    """,
+                    (str(project_id), str(project_id)),
+                )
+                row = await cursor.fetchone()
+
+                # 만약 새 테이블에 정보가 없다면 기존 projects 테이블에서 조회 (백필 미작동 대비)
+                if not row:
                     await cursor.execute(
                         """
                         SELECT p.status as project_status, COUNT(sm.id) as model_count
@@ -325,35 +390,71 @@ async def get_wf1_analysis_status(project_id: UUID) -> dict:
                         """,
                         (str(project_id),),
                     )
-                row = await cursor.fetchone()
+                    fallback_row = await cursor.fetchone()
-                if not row:
+                    if not fallback_row:
                         return JSONResponse(
                             status_code=404,
                             content={"status": "error", "message": "프로젝트를 찾을 수 없습니다."},
                         )
-                model_count = int(row["model_count"]) if row else 0
+                    model_count = int(fallback_row["model_count"])
+                    project_status = str(fallback_row.get("project_status") or "NEW")
 
-        project_status = str(row.get("project_status") or "NEW")
                     if project_status == "WF1_FAILED":
-            status = "failed"
+                        state = "FAILED"
                         progress_percent = 0
-            current_stage = "failed"
                         message = "WF1 분석에 실패했습니다."
                     elif model_count > 0 or project_status == "WF1_COMPLETE":
+                        state = "COMPLETE"
+                        progress_percent = 100
+                        message = "WF1 분석이 완료되었습니다."
+                    elif project_status == "WF1_ANALYZING":
+                        state = "IN_PROGRESS"
+                        progress_percent = 30
+                        message = "WF1 분석이 진행 중입니다."
+                    else:
+                        state = "NOT_STARTED"
+                        progress_percent = 0
+                        message = "WF1 분석 대기 중입니다."
+                else:
+                    state = row["state"]
+                    progress_percent = row["progress_percent"]
+                    message = row["message"] or ""
+                    model_count = int(row["model_count"])
+
+        if state == "FAILED":
+            status = "failed"
+            current_stage = "failed"
+            if not message:
+                message = "WF1 분석에 실패했습니다."
+        elif state == "COMPLETE":
             status = "completed"
             progress_percent = 100
             current_stage = "completed"
+            if not message:
                 message = "WF1 분석이 완료되었습니다."
-        elif project_status == "WF1_ANALYZING":
+        elif state == "IN_PROGRESS":
             status = "in_progress"
-            progress_percent = 30
             current_stage = "surface_analysis"
+            if not message:
                 message = "WF1 분석이 진행 중입니다."
+            # 진행률 파일이 있으면 실제 단계별 진행률로 대체
+            try:
+                async with pool.acquire() as connection:
+                    stored_path = await get_project_storage_relative_path(connection, project_id)
+                progress = read_surface_progress(Path(resolve_stored_project_path(stored_path)))
+                if progress:
+                    progress_percent = int(progress.get("progress_percent", progress_percent))
+                    current_stage = str(progress.get("current_stage", current_stage))
+                    message = str(progress.get("message", message))
+            except LookupError:
+                pass
         else:
             status = "pending"
             progress_percent = 0
             current_stage = "pending"
+            if not message:
                 message = "WF1 분석 대기 중입니다."
+
         return {
             "project_id": str(project_id),
             "status": status,

B04_wf1_Surface/B04_wf1_Surface_UI_Page.ts

@@ -2,10 +2,10 @@
  * B04_wf1_Surface_UI_Page.ts
  * 로그인 후 04: 1차 워크플로우 (지표면 모델 분석)
  *
- * 3단 레이아웃 (frontend.md §2):
+ * 데스크톱 IDE 스타일 레이아웃 (createWorkflowLayout):
- *   상단: 페이지 타이틀 + 진행 단계 스텝바 (createWorkflowShell)
+ *   헤더: 페이지 타이틀 + 진행 단계 스텝바 (숨김/복원 토글)
- *   좌측: 입력 파일 ID + 지면 필터/지표면 표현 선택 + 실행 옵션 폼
+ *   좌측 오버레이 패널: 입력 파일 자동 선택 + 지면 필터/지표면 표현 + 실행 옵션
- *   우측: 생성된 지표면 모델 목록 그리드
+ *   우측 메인: 3D 포인트클라우드 뷰어 + 지면 통계 + 지표면 모델 카드
  *
  * 이벤트 핸들러 명명 (frontend.md §4): onB04_Surface_[기능]_[액션]
  * 텍스트는 ui_template_locale에 선(先) 등록 후 참조 (frontend.md §3).
@@ -15,9 +15,7 @@ import { CURRENT_PROJECT_ID_KEY } from "@config/config_frontend";
 import { currentLanguageIndex, ui_locales } from "@ui/ui_template_locale";
 import {
   createButton,
-  createInputField,
   createTag,
-  createWorkflowShell,
   hideLoadingOverlay,
   showLoadingOverlay,
   showToast,
@@ -81,180 +79,6 @@ function buildCheckboxGroup(
   return { root, selected };
 }
 
-export function renderB04SurfaceLegacy(root: HTMLElement): void {
-  const shell = createWorkflowShell({
-    title: L("B04_Surface_Title"),
-    steps: workflowSteps(),
-    activeStep: 0,
-  });
-
-  /* ---- 좌측 입력 패널 ---- */
-  const inputFileField = createInputField({
-    label: L("B04_Surface_Field_InputId"),
-    type: "number",
-    min: 1,
-    placeholder: L("B04_Surface_Field_InputId_Placeholder"),
-  });
-
-  const filterGroup = buildCheckboxGroup(L("B04_Surface_Group_Filters"), SOURCE_FILTERS, [
-    "grid_min_z",
-    "csf",
-    "pmf",
-  ]);
-  const methodGroup = buildCheckboxGroup(L("B04_Surface_Group_Methods"), MODEL_METHODS, [
-    "dtm",
-    "tin",
-  ]);
-
-  const forceLabel = document.createElement("label");
-  forceLabel.className = "b04-surface__check";
-  const forceBox = document.createElement("input");
-  forceBox.type = "checkbox";
-  const forceText = document.createElement("span");
-  forceText.textContent = L("B04_Surface_Field_Force");
-  forceLabel.append(forceBox, forceText);
-
-  const analyzeButton = createButton({
-    label: L("B04_Surface_Btn_Analyze"),
-    variant: "filled",
-    onClick: () => void onB04_Surface_Analyze_Click(),
-  });
-
-  const leftForm = document.createElement("div");
-  leftForm.className = "b04-surface__form";
-  leftForm.append(
-    inputFileField.root,
-    filterGroup.root,
-    methodGroup.root,
-    forceLabel,
-    analyzeButton,
-  );
-  shell.leftPanel.append(leftForm);
-
-  /* ---- 우측 결과 영역 ---- */
-  const resultHeader = document.createElement("div");
-  resultHeader.className = "b04-surface__result-head";
-  const resultTitle = document.createElement("h3");
-  resultTitle.textContent = L("B04_Surface_Result_Title");
-  const refreshButton = createButton({
-    label: L("B04_Surface_Btn_Refresh"),
-    variant: "ghost",
-    onClick: () => void onB04_Surface_Refresh_Click(),
-  });
-  resultHeader.append(resultTitle, refreshButton);
-
-  const modelList = document.createElement("div");
-  modelList.className = "b04-surface__models";
-
-  const resultArea = document.createElement("div");
-  resultArea.className = "b04-surface__result";
-  resultArea.append(resultHeader, modelList);
-  shell.rightArea.append(resultArea);
-
-  function renderModels(models: readonly SurfaceModelSummary[]): void {
-    modelList.replaceChildren();
-    if (models.length === 0) {
-      const empty = document.createElement("p");
-      empty.className = "b04-surface__empty";
-      empty.textContent = L("B04_Surface_Result_Empty");
-      modelList.append(empty);
-      return;
-    }
-    for (const model of models) {
-      const card = document.createElement("div");
-      card.className = "b04-surface__model-card";
-      const head = document.createElement("div");
-      head.className = "b04-surface__model-head";
-      const type = document.createElement("strong");
-      type.textContent = model.model_type;
-      const variant =
-        model.status === "CONFIRMED" ? "success" : model.status === "FAILED" ? "danger" : "neutral";
-      head.append(type, createTag(model.status, variant));
-
-      const meta = document.createElement("div");
-      meta.className = "b04-surface__model-meta";
-      const resolution = document.createElement("span");
-      resolution.textContent = `${L("B04_Surface_Model_Resolution")}: ${model.resolution_m ?? "-"}`;
-      const path = document.createElement("span");
-      path.textContent = `${L("B04_Surface_Model_Path")}: ${model.model_file_path ?? "-"}`;
-      meta.append(resolution, path);
-
-      card.append(head, meta);
-      modelList.append(card);
-    }
-  }
-
-  function getProjectId(): string | null {
-    const projectId = localStorage.getItem(CURRENT_PROJECT_ID_KEY);
-    if (!projectId) {
-      inputFileField.setError(L("B04_Surface_Error_Project"));
-      showToast(L("B04_Surface_Error_Project"), "error");
-    }
-    return projectId;
-  }
-
-  async function onB04_Surface_Analyze_Click(): Promise<void> {
-    const projectId = getProjectId();
-    if (!projectId) return;
-
-    const rawId = inputFileField.input.value.trim();
-    const inputFileId = Number(rawId);
-    if (!rawId || !Number.isInteger(inputFileId) || inputFileId <= 0) {
-      inputFileField.setError(L("B04_Surface_Error_InputId"));
-      return;
-    }
-    if (filterGroup.selected.size === 0 || methodGroup.selected.size === 0) {
-      inputFileField.setError(L("B04_Surface_Error_Selection"));
-      return;
-    }
-    inputFileField.setError();
-
-    showLoadingOverlay();
-    try {
-      const response = await analyzeSurface(projectId, {
-        input_file_id: inputFileId,
-        source_filters: [...filterGroup.selected],
-        methods: [...methodGroup.selected],
-        force: forceBox.checked,
-      });
-      showToast(
-        `${L("B04_Surface_Analyze_Success")} (${response.surface_model_ids.length})`,
-        "success",
-      );
-      await loadModels(projectId);
-    } catch (error) {
-      const detail = error instanceof Error ? error.message : L("B04_Surface_Analyze_Failed");
-      inputFileField.setError(`${L("B04_Surface_Analyze_Failed")} ${detail}`);
-      showToast(L("B04_Surface_Analyze_Failed"), "error");
-    } finally {
-      hideLoadingOverlay();
-    }
-  }
-
-  async function loadModels(projectId: string): Promise<void> {
-    showLoadingOverlay();
-    try {
-      const response = await listSurfaceModels(projectId);
-      renderModels(response.models);
-    } catch {
-      showToast(L("B04_Surface_Load_Failed"), "error");
-    } finally {
-      hideLoadingOverlay();
-    }
-  }
-
-  async function onB04_Surface_Refresh_Click(): Promise<void> {
-    const projectId = getProjectId();
-    if (projectId) await loadModels(projectId);
-  }
-
-  renderModels([]);
-  root.replaceChildren(shell.root);
-
-  const initialProjectId = localStorage.getItem(CURRENT_PROJECT_ID_KEY);
-  if (initialProjectId) void loadModels(initialProjectId);
-}
-
 function buildInfoLine(label: string, value: unknown): HTMLElement {
   const row = document.createElement("div");
   row.className = "b04-surface__line";

B05_wf2_Route/B05_wf2_Route_Router.py

@@ -23,6 +23,7 @@ from B05_wf2_Route.B05_wf2_Route_Schema import (
     RouteSolveResponse,
 )
 from common_util.common_util_storage import resolve_stored_project_path
+from common_util.common_util_workflow_state import complete_stage, fail_stage, start_stage
 from config.config_db import get_db_pool
 
 logger = logging.getLogger(__name__)
@@ -36,7 +37,20 @@ async def solve_route(
     """경로 탐색을 실행하고 결과를 GeoJSON 저장 + DB 기록한다."""
     pool = get_db_pool()
     try:
+        params = {
+            "filter_key": request.filter_key,
+            "method": request.method,
+            "smooth": request.smooth,
+            "points": request.points,
+            "options": request.options(),
+            "algorithm": request.algorithm,
+            "surface_model_id": request.surface_model_id,
+        }
         async with pool.acquire() as connection:
+            async with connection.cursor() as cursor:
+                await start_stage(cursor, str(project_id), 2, params)
+                await connection.commit()
+
             stored_path = await get_project_storage_relative_path(connection, project_id)
             project_root = Path(resolve_stored_project_path(stored_path))
 
@@ -78,6 +92,8 @@ async def solve_route(
                     mean_slope=stats["mean_slope"],
                     cost_score=stats["cost_score"],
                 )
+                async with connection.cursor() as cursor:
+                    await complete_stage(cursor, str(project_id), 2)
                 await connection.commit()
             except Exception:
                 await connection.rollback()
@@ -92,13 +108,25 @@ async def solve_route(
             route_data_path=design["route_data_path"],
         )
     except LookupError as exc:
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 2, str(exc))
+            await connection.commit()
         return JSONResponse(status_code=404, content={"status": "error", "message": str(exc)})
     except FileNotFoundError as exc:
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 2, str(exc))
+            await connection.commit()
         return JSONResponse(status_code=404, content={"status": "error", "message": str(exc)})
     except (OSError, ValueError) as exc:
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 2, str(exc))
+            await connection.commit()
         return JSONResponse(status_code=400, content={"status": "error", "message": str(exc)})
-    except Exception:
+    except Exception as exc:
         logger.exception("B05 경로 탐색 실패: project_id=%s", project_id)
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 2, str(exc))
+            await connection.commit()
         return JSONResponse(
             status_code=500,
             content={"status": "error", "message": "경로 탐색 처리 중 오류가 발생했습니다."},
@@ -120,6 +148,8 @@ async def confirm_latest_route(project_id: UUID) -> RouteConfirmResponse | JSONR
             await connection.begin()
             try:
                 await confirm_route(connection, latest["id"])
+                async with connection.cursor() as cursor:
+                    await complete_stage(cursor, str(project_id), 2)
                 await connection.commit()
             except Exception:
                 await connection.rollback()

B06_wf3_ProfileCross/B06_wf3_ProfileCross_Router.py

@@ -26,6 +26,7 @@ from B06_wf3_ProfileCross.B06_wf3_ProfileCross_Schema import (
     SectionSummaryResponse,
 )
 from common_util.common_util_storage import resolve_stored_project_path
+from common_util.common_util_workflow_state import complete_stage, fail_stage, start_stage
 from config.config_db import get_db_pool
 
 logger = logging.getLogger(__name__)
@@ -51,7 +52,22 @@ async def generate_sections(
     """확정 경로에서 종횡단을 생성·저장하고 DB에 기록한다."""
     pool = get_db_pool()
     try:
+        params = {
+            "route_id": request.route_id,
+            "filter_key": request.filter_key,
+            "method": request.method,
+            "smooth": request.smooth,
+            "station_interval_m": request.station_interval_m,
+            "cross_half_width_m": request.cross_half_width_m,
+            "cross_sample_interval_m": request.cross_sample_interval_m,
+            "long_sample_interval_m": request.long_sample_interval_m,
+            "crs": request.crs,
+        }
         async with pool.acquire() as connection:
+            async with connection.cursor() as cursor:
+                await start_stage(cursor, str(project_id), 3, params)
+                await connection.commit()
+
             stored_path = await get_project_storage_relative_path(connection, project_id)
             project_root = Path(resolve_stored_project_path(stored_path))
 
@@ -91,6 +107,8 @@ async def generate_sections(
                     route_id=request.route_id,
                     sections=design["cross_sections"],
                 )
+                async with connection.cursor() as cursor:
+                    await complete_stage(cursor, str(project_id), 3)
                 await connection.commit()
             except Exception:
                 await connection.rollback()
@@ -105,13 +123,25 @@ async def generate_sections(
             longitudinal_file_path=design["longitudinal"]["file_path"],
         )
     except LookupError as exc:
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 3, str(exc))
+            await connection.commit()
         return JSONResponse(status_code=404, content={"status": "error", "message": str(exc)})
     except FileNotFoundError as exc:
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 3, str(exc))
+            await connection.commit()
         return JSONResponse(status_code=404, content={"status": "error", "message": str(exc)})
     except (OSError, ValueError) as exc:
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 3, str(exc))
+            await connection.commit()
         return JSONResponse(status_code=400, content={"status": "error", "message": str(exc)})
-    except Exception:
+    except Exception as exc:
         logger.exception("B06 종횡단 생성 실패: project_id=%s", project_id)
+        async with pool.acquire() as connection, connection.cursor() as cursor:
+            await fail_stage(cursor, str(project_id), 3, str(exc))
+            await connection.commit()
         return JSONResponse(
             status_code=500,
             content={"status": "error", "message": "종횡단 생성 처리 중 오류가 발생했습니다."},
@@ -137,7 +167,9 @@ async def get_sections(project_id: UUID, route_id: int) -> SectionSummaryRespons
 
 
 @router.post("/{project_id}/sections/{route_id}/confirm", response_model=SectionConfirmResponse)
-async def confirm_sections(project_id: UUID, route_id: int) -> SectionConfirmResponse | JSONResponse:
+async def confirm_sections(
+    project_id: UUID, route_id: int
+) -> SectionConfirmResponse | JSONResponse:
     """경로의 종횡단면을 확정(CONFIRMED)한다."""
     pool = get_db_pool()
     try:
@@ -151,6 +183,8 @@ async def confirm_sections(project_id: UUID, route_id: int) -> SectionConfirmRes
             await connection.begin()
             try:
                 await confirm_sections_for_route(connection, route_id)
+                async with connection.cursor() as cursor:
+                    await complete_stage(cursor, str(project_id), 3)
                 await connection.commit()
             except Exception:
                 await connection.rollback()

common_util/common_util_workflow_state.py

@@ -0,0 +1,210 @@
+"""워크플로우 단계별 상태 관리를 위한 공통 유틸리티."""
+
+import json
+from datetime import datetime
+from typing import Any, Dict
+
+import aiomysql
+
+STAGE_KEYS = [
+    "FILE_INPUT",  # 0
+    "WF1_SURFACE",  # 1
+    "WF2_ROUTE",  # 2
+    "WF3_PROFILE_CROSS",  # 3
+    "WF4_DESIGN_DETAIL",  # 4
+    "WF5_QUANTITY",  # 5
+    "WF6_ESTIMATION",  # 6
+]
+
+
+async def initialize_project_stages(cursor: aiomysql.DictCursor, project_id: str) -> None:
+    """프로젝트 생성 시 7개의 단계를 NOT_STARTED 상태로 시드한다."""
+    for stage_no, stage_key in enumerate(STAGE_KEYS):
+        await cursor.execute(
+            """
+            INSERT INTO project_workflow_stages (
+                project_id, stage_no, stage_key, state, progress_percent
+            )
+            VALUES (%s, %s, %s, 'NOT_STARTED', 0)
+            ON DUPLICATE KEY UPDATE
+                state = 'NOT_STARTED',
+                progress_percent = 0,
+                params = NULL,
+                message = NULL,
+                started_at = NULL,
+                completed_at = NULL
+            """,
+            (project_id, stage_no, stage_key),
+        )
+
+
+async def start_stage(
+    cursor: aiomysql.DictCursor,
+    project_id: str,
+    stage_no: int,
+    params: Dict[str, Any] | None = None,
+) -> None:
+    """단계를 시작하여 IN_PROGRESS 상태로 만들고, 이후 단계들을 STALE로 전환한다."""
+    now = datetime.utcnow()
+    params_json = json.dumps(params, ensure_ascii=False) if params is not None else None
+
+    # 해당 단계 시작
+    await cursor.execute(
+        """
+        UPDATE project_workflow_stages
+        SET state = 'IN_PROGRESS',
+            progress_percent = 0,
+            params = COALESCE(%s, params),
+            message = NULL,
+            started_at = %s,
+            completed_at = NULL
+        WHERE project_id = %s AND stage_no = %s
+        """,
+        (params_json, now, project_id, stage_no),
+    )
+
+    # 역방향 재작업 무효화 (stale 전파): 이후 단계 중 COMPLETE인 것들을 STALE로 변경
+    await cursor.execute(
+        """
+        UPDATE project_workflow_stages
+        SET state = 'STALE'
+        WHERE project_id = %s AND stage_no > %s AND state = 'COMPLETE'
+        """,
+        (project_id, stage_no),
+    )
+
+    # projects.status 캐시 업데이트 (호환성 유지)
+    status_str = f"WF{stage_no}_ANALYZING" if stage_no > 0 else "FILE_INPUT_PROCESSING"
+    await cursor.execute(
+        """
+        UPDATE projects
+        SET status = %s, updated_at = %s
+        WHERE id = %s
+        """,
+        (status_str, now, project_id),
+    )
+
+
+async def complete_stage(cursor: aiomysql.DictCursor, project_id: str, stage_no: int) -> None:
+    """단계를 완료 상태로 전환한다."""
+    now = datetime.utcnow()
+    await cursor.execute(
+        """
+        UPDATE project_workflow_stages
+        SET state = 'COMPLETE',
+            progress_percent = 100,
+            completed_at = %s
+        WHERE project_id = %s AND stage_no = %s
+        """,
+        (now, project_id, stage_no),
+    )
+
+    # projects.status 캐시 업데이트 (호환성 유지)
+    status_str = f"WF{stage_no}_COMPLETE" if stage_no > 0 else "FILE_UPLOADED"
+    if stage_no == 6:
+        status_str = "DONE"
+
+    await cursor.execute(
+        """
+        UPDATE projects
+        SET status = %s, updated_at = %s
+        WHERE id = %s
+        """,
+        (status_str, now, project_id),
+    )
+
+
+async def update_stage_progress(
+    cursor: aiomysql.DictCursor, project_id: str, stage_no: int, progress: int
+) -> None:
+    """단계 진행률을 업데이트한다."""
+    await cursor.execute(
+        """
+        UPDATE project_workflow_stages
+        SET progress_percent = %s
+        WHERE project_id = %s AND stage_no = %s
+        """,
+        (progress, project_id, stage_no),
+    )
+
+
+async def fail_stage(
+    cursor: aiomysql.DictCursor, project_id: str, stage_no: int, message: str
+) -> None:
+    """단계를 실패 상태로 전환한다."""
+    now = datetime.utcnow()
+    await cursor.execute(
+        """
+        UPDATE project_workflow_stages
+        SET state = 'FAILED',
+            message = %s
+        WHERE project_id = %s AND stage_no = %s
+        """,
+        (message, project_id, stage_no),
+    )
+
+    # projects.status 캐시 업데이트
+    status_str = f"WF{stage_no}_FAILED" if stage_no > 0 else "FILE_INPUT_FAILED"
+    await cursor.execute(
+        """
+        UPDATE projects
+        SET status = %s, updated_at = %s
+        WHERE id = %s
+        """,
+        (status_str, now, project_id),
+    )
+
+
+async def get_workflow_state(cursor: aiomysql.DictCursor, project_id: str) -> Dict[str, Any]:
+    """프로젝트의 모든 단계 상태를 조회하여 요약 및 배열로 반환한다."""
+    await cursor.execute(
+        """
+        SELECT stage_no, stage_key, state, progress_percent, params, message,
+               DATE_FORMAT(started_at, '%%Y-%%m-%%dT%%H:%%i:%%s') AS started_at,
+               DATE_FORMAT(completed_at, '%%Y-%%m-%%dT%%H:%%i:%%s') AS completed_at
+        FROM project_workflow_stages
+        WHERE project_id = %s
+        ORDER BY stage_no ASC
+        """,
+        (project_id,),
+    )
+    rows = await cursor.fetchall()
+
+    if not rows:
+        return {"project_id": project_id, "current_stage": 0, "stages": []}
+
+    stages_list = []
+    for r in rows:
+        params_val = None
+        if r.get("params"):
+            try:
+                params_val = (
+                    json.loads(r["params"]) if isinstance(r["params"], str) else r["params"]
+                )
+            except Exception:
+                params_val = r["params"]
+
+        stages_list.append(
+            {
+                "stage_no": r["stage_no"],
+                "stage_key": r["stage_key"],
+                "state": r["state"],
+                "progress_percent": r["progress_percent"],
+                "params": params_val,
+                "message": r["message"],
+                "started_at": r["started_at"],
+                "completed_at": r["completed_at"],
+            }
+        )
+
+    current_stage = 0
+    for stage in stages_list:
+        if stage["stage_no"] == 0:
+            continue
+        prev_stage = stages_list[stage["stage_no"] - 1]
+        if prev_stage["state"] == "COMPLETE":
+            current_stage = stage["stage_no"]
+        else:
+            break
+
+    return {"project_id": project_id, "current_stage": current_stage, "stages": stages_list}

db_management/006_workflow_state.sql

@@ -0,0 +1,23 @@
+-- =============================================================================
+-- 워크플로우 단계별 상태 관리 테이블
+-- DBMS: MariaDB 10.6+
+-- =============================================================================
+
+USE aislo_db;
+
+CREATE TABLE IF NOT EXISTS project_workflow_stages (
+  id INT AUTO_INCREMENT PRIMARY KEY,
+  project_id CHAR(36) NOT NULL,
+  stage_no TINYINT NOT NULL,              -- 0=파일입력, 1=WF1 ... 6=WF6
+  stage_key VARCHAR(30) NOT NULL,         -- 'FILE_INPUT','WF1_SURFACE',...,'WF6_ESTIMATION'
+  state ENUM('NOT_STARTED','IN_PROGRESS','COMPLETE','FAILED','STALE') NOT NULL DEFAULT 'NOT_STARTED',
+  progress_percent TINYINT NOT NULL DEFAULT 0,
+  params JSON NULL,                        -- 해당 단계에서 사용자가 선택/입력한 값 (재실행 시 재사용)
+  message VARCHAR(255) NULL,               -- 진행/오류 메시지
+  started_at TIMESTAMP NULL,
+  completed_at TIMESTAMP NULL,
+  updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  UNIQUE KEY uq_project_stage (project_id, stage_no),
+  INDEX idx_pws_project (project_id),
+  CONSTRAINT fk_pws_project_id FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

db_management/migrate_workflow_state.py

@@ -0,0 +1,158 @@
+"""워크플로우 단계별 상태 테이블 생성 및 기존 프로젝트 백필 마이그레이션 스크립트."""
+
+import asyncio
+import sys
+from pathlib import Path
+
+import aiomysql
+
+# Import DB config
+sys.path.append(str(Path(__file__).parent.parent))
+from common_util.common_util_workflow_state import STAGE_KEYS
+from config.config_db import DB_HOST, DB_NAME, DB_PASSWORD, DB_PORT, DB_USER
+
+
+async def migrate():
+    print("Database connecting...")
+    connection = await aiomysql.connect(
+        host=DB_HOST,
+        port=DB_PORT,
+        user=DB_USER,
+        password=DB_PASSWORD,
+        db=DB_NAME,
+        charset="utf8mb4",
+    )
+
+    try:
+        async with connection.cursor() as cursor:
+            # 1. 테이블 생성
+            sql_file = Path(__file__).parent / "006_workflow_state.sql"
+            print(f"Executing schema from {sql_file.name}...")
+            sql_content = sql_file.read_text(encoding="utf-8")
+            # Remove USE aislo_db; to avoid issues if any, but splitting is fine
+            statements = [stmt.strip() for stmt in sql_content.split(";") if stmt.strip()]
+            for stmt in statements:
+                await cursor.execute(stmt)
+            print("Table project_workflow_stages created successfully.")
+
+        await connection.commit()
+
+        # 2. 기존 프로젝트 백필
+        async with connection.cursor(aiomysql.DictCursor) as cursor:
+            await cursor.execute("SELECT id, status FROM projects")
+            projects = await cursor.fetchall()
+            print(f"Found {len(projects)} existing projects to backfill.")
+
+            for proj in projects:
+                proj_id = proj["id"]
+                status = proj["status"] or "NEW"
+                print(f"Backfilling project {proj_id} with status '{status}'...")
+
+                # 각 단계별 상태 매핑 결정
+                # 0=FILE_INPUT, 1=SURFACE, 2=ROUTE, 3=PROFILE_CROSS
+                # 4=DESIGN_DETAIL, 5=QUANTITY, 6=ESTIMATION
+                states = ["NOT_STARTED"] * 7
+
+                if status == "NEW":
+                    pass
+                elif status in ("FILE_INPUT_PROCESSING", "FILE_INPUT_FAILED"):
+                    states[0] = "IN_PROGRESS" if "PROCESSING" in status else "FAILED"
+                elif status == "FILE_UPLOADED":
+                    states[0] = "COMPLETE"
+                elif "WF1" in status:
+                    states[0] = "COMPLETE"
+                    if "ANALYZING" in status:
+                        states[1] = "IN_PROGRESS"
+                    elif "FAILED" in status:
+                        states[1] = "FAILED"
+                    else:
+                        states[1] = "COMPLETE"
+                elif "WF2" in status:
+                    states[0] = "COMPLETE"
+                    states[1] = "COMPLETE"
+                    if "ANALYZING" in status:
+                        states[2] = "IN_PROGRESS"
+                    elif "FAILED" in status:
+                        states[2] = "FAILED"
+                    else:
+                        states[2] = "COMPLETE"
+                elif "WF3" in status:
+                    states[0] = "COMPLETE"
+                    states[1] = "COMPLETE"
+                    states[2] = "COMPLETE"
+                    if "ANALYZING" in status:
+                        states[3] = "IN_PROGRESS"
+                    elif "FAILED" in status:
+                        states[3] = "FAILED"
+                    else:
+                        states[3] = "COMPLETE"
+                elif "WF4" in status:
+                    states[0] = "COMPLETE"
+                    states[1] = "COMPLETE"
+                    states[2] = "COMPLETE"
+                    states[3] = "COMPLETE"
+                    if "ANALYZING" in status:
+                        states[4] = "IN_PROGRESS"
+                    elif "FAILED" in status:
+                        states[4] = "FAILED"
+                    else:
+                        states[4] = "COMPLETE"
+                elif "WF5" in status:
+                    states[0] = "COMPLETE"
+                    states[1] = "COMPLETE"
+                    states[2] = "COMPLETE"
+                    states[3] = "COMPLETE"
+                    states[4] = "COMPLETE"
+                    if "ANALYZING" in status:
+                        states[5] = "IN_PROGRESS"
+                    elif "FAILED" in status:
+                        states[5] = "FAILED"
+                    else:
+                        states[5] = "COMPLETE"
+                elif "WF6" in status:
+                    states[0] = "COMPLETE"
+                    states[1] = "COMPLETE"
+                    states[2] = "COMPLETE"
+                    states[3] = "COMPLETE"
+                    states[4] = "COMPLETE"
+                    states[5] = "COMPLETE"
+                    if "ANALYZING" in status:
+                        states[6] = "IN_PROGRESS"
+                    elif "FAILED" in status:
+                        states[6] = "FAILED"
+                    else:
+                        states[6] = "COMPLETE"
+                elif status in ("DONE", "CONFIRMED"):
+                    for i in range(7):
+                        states[i] = "COMPLETE"
+
+                # DB에 단계별 정보 입력 (ON DUPLICATE KEY UPDATE로 덮어쓰기 안전)
+                for stage_no, stage_key in enumerate(STAGE_KEYS):
+                    state = states[stage_no]
+                    progress = 100 if state == "COMPLETE" else 0
+                    await cursor.execute(
+                        """
+                        INSERT INTO project_workflow_stages (
+                            project_id, stage_no, stage_key, state, progress_percent
+                        )
+                        VALUES (%s, %s, %s, %s, %s)
+                        ON DUPLICATE KEY UPDATE state = %s, progress_percent = %s
+                        """,
+                        (proj_id, stage_no, stage_key, state, progress, state, progress),
+                    )
+
+            await connection.commit()
+            print("Backfill complete!")
+            return True
+
+    except Exception as e:
+        print(f"Migration / Backfill failed: {e}")
+        await connection.rollback()
+        return False
+    finally:
+        connection.close()
+
+
+if __name__ == "__main__":
+    success = asyncio.run(migrate())
+    sys.exit(0 if success else 1)

ui_template/ui_template_workflow_layout.css

@@ -16,6 +16,25 @@
 }
 
 .ui-workflow-layout__menu-button {
+  position: absolute;
+  top: 60px;
+  left: var(--spacing-24);
+  z-index: var(--z-dropdown);
+  width: auto;
+  min-width: 40px;
+  height: 40px;
+  padding: 0 var(--spacing-12);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-buttons);
+  background: var(--color-canvas);
+  color: var(--color-text);
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-8);
+}
+
+.ui-workflow-layout__header-hide {
   width: 40px;
   height: 40px;
   border: 1px solid var(--color-border);
@@ -23,6 +42,35 @@
   background: var(--color-canvas);
   color: var(--color-text);
   cursor: pointer;
+  flex: 0 0 auto;
+}
+
+/* 헤더 슬라이드업 숨김 */
+.ui-workflow-layout__header {
+  transition: margin-top var(--transition-base);
+}
+
+.ui-workflow-layout.is-header-hidden .ui-workflow-layout__header {
+  margin-top: calc(-1 * var(--wf-header-height));
+  pointer-events: none;
+}
+
+/* 헤더 복원 화살표: 숨김 상태에서만 표시 */
+.ui-workflow-layout__header-reveal {
+  display: none;
+  align-self: center;
+  width: 48px;
+  height: 24px;
+  margin: var(--spacing-4) auto;
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-pills);
+  background: var(--color-surface-raised);
+  color: var(--color-text-secondary);
+  cursor: pointer;
+}
+
+.ui-workflow-layout.is-header-hidden .ui-workflow-layout__header-reveal {
+  display: block;
 }
 
 .ui-workflow-layout__title-wrap {
@@ -61,27 +109,41 @@
 
 .ui-workflow-layout__body {
   position: relative;
-  display: grid;
+  display: block;
-  grid-template-columns: 280px minmax(0, 1fr);
   flex: 1;
   min-height: 0;
 }
 
-.ui-workflow-layout__panel {
+.ui-workflow-layout__dropdown-panel {
+  position: absolute;
+  top: 108px;
+  left: var(--spacing-24);
+  width: 320px;
+  max-height: calc(100vh - var(--wf-header-height) - 80px);
   z-index: var(--z-dropdown);
   overflow-y: auto;
-  border-right: 1px solid var(--color-border);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-cards);
   background: var(--color-surface);
+  box-shadow: var(--shadow-lg);
+  padding: var(--spacing-16);
+  opacity: 0;
+  transform: translateY(-10px);
+  pointer-events: none;
   transition:
-    margin-left var(--transition-base),
+    opacity var(--transition-base),
-    box-shadow var(--transition-base);
+    transform var(--transition-base);
 }
 
-.ui-workflow-layout:not(.is-menu-open) .ui-workflow-layout__panel {
+.ui-workflow-layout.is-menu-open .ui-workflow-layout__dropdown-panel {
-  margin-left: -280px;
+  opacity: 1;
+  transform: translateY(0);
+  pointer-events: all;
 }
 
 .ui-workflow-layout__main {
+  width: 100%;
+  height: 100%;
   min-width: 0;
   min-height: 0;
   overflow: auto;
@@ -95,23 +157,9 @@
     gap: var(--spacing-8);
   }
 
-  .ui-workflow-layout__body {
+  .ui-workflow-layout__dropdown-panel {
-    display: block;
+    left: var(--spacing-8);
-  }
+    right: var(--spacing-8);
-
+    width: auto;
-  .ui-workflow-layout__panel {
-    position: absolute;
-    inset: 0 auto 0 0;
-    width: 280px;
-    box-shadow: var(--shadow-lg);
-  }
-
-  .ui-workflow-layout:not(.is-menu-open) .ui-workflow-layout__panel {
-    margin-left: -280px;
-    box-shadow: none;
-  }
-
-  .ui-workflow-layout__main {
-    min-height: calc(100vh - var(--wf-header-height));
   }
 }

ui_template/ui_template_workflow_layout.ts

@@ -7,11 +7,13 @@ export interface WorkflowLayoutOptions {
   leftPanel: HTMLElement;
   mainContent: HTMLElement;
   onMenuToggle?: (isOpen: boolean) => void;
+  onHeaderToggle?: (isVisible: boolean) => void;
 }
 
 export interface WorkflowLayoutHandle {
   root: HTMLElement;
   setMenuOpen: (isOpen: boolean) => void;
+  setHeaderVisible: (isVisible: boolean) => void;
 }
 
 function createStepBar(steps: readonly string[], activeStep: number): HTMLElement {
@@ -37,8 +39,8 @@ export function createWorkflowLayout(options: WorkflowLayoutOptions): WorkflowLa
   const menuButton = document.createElement("button");
   menuButton.type = "button";
   menuButton.className = "ui-workflow-layout__menu-button";
-  menuButton.setAttribute("aria-label", "Toggle workflow menu");
+  menuButton.setAttribute("aria-label", "Toggle settings panel");
-  menuButton.textContent = "☰";
+  menuButton.innerHTML = "🛠️ <span>Option ▾</span>";
 
   const titleWrap = document.createElement("div");
   titleWrap.className = "ui-workflow-layout__title-wrap";
@@ -47,33 +49,71 @@ export function createWorkflowLayout(options: WorkflowLayoutOptions): WorkflowLa
   title.textContent = options.title;
   titleWrap.append(title, createStepBar(options.steps, options.activeStep));
 
-  header.append(menuButton, titleWrap);
+  const headerHideButton = document.createElement("button");
+  headerHideButton.type = "button";
+  headerHideButton.className = "ui-workflow-layout__header-hide";
+  headerHideButton.setAttribute("aria-label", "Hide header");
+  headerHideButton.textContent = "▲";
+
+  header.append(titleWrap, headerHideButton);
+
+  // 헤더 숨김 시 표시되는 복원 화살표
+  const headerRevealButton = document.createElement("button");
+  headerRevealButton.type = "button";
+  headerRevealButton.className = "ui-workflow-layout__header-reveal";
+  headerRevealButton.setAttribute("aria-label", "Show header");
+  headerRevealButton.textContent = "▼";
 
   const body = document.createElement("div");
   body.className = "ui-workflow-layout__body";
 
-  const aside = document.createElement("aside");
+  const dropdownPanel = document.createElement("div");
-  aside.className = "ui-workflow-layout__panel";
+  dropdownPanel.className = "ui-workflow-layout__dropdown-panel";
-  aside.append(options.leftPanel);
+  dropdownPanel.append(options.leftPanel);
 
   const main = document.createElement("main");
   main.className = "ui-workflow-layout__main";
-  main.append(options.mainContent);
+  main.style.position = "relative";
+  main.append(menuButton, options.mainContent);
 
-  body.append(aside, main);
+  body.append(dropdownPanel, main);
-  root.append(header, body);
+  root.append(header, headerRevealButton, body);
 
   function setMenuOpen(isOpen: boolean): void {
     root.classList.toggle("is-menu-open", isOpen);
     menuButton.setAttribute("aria-expanded", String(isOpen));
+    const icon = menuButton.querySelector("span");
+    if (icon) {
+      icon.textContent = isOpen ? "Option ▴" : "Option ▾";
+    }
     options.onMenuToggle?.(isOpen);
   }
 
-  menuButton.addEventListener("click", () => setMenuOpen(!root.classList.contains("is-menu-open")));
+  function setHeaderVisible(isVisible: boolean): void {
-  main.addEventListener("click", () => {
+    root.classList.toggle("is-header-hidden", !isVisible);
-    if (root.classList.contains("is-menu-open")) setMenuOpen(false);
+    headerHideButton.setAttribute("aria-expanded", String(isVisible));
+    options.onHeaderToggle?.(isVisible);
+  }
+
+  menuButton.addEventListener("click", (e) => {
+    e.stopPropagation();
+    setMenuOpen(!root.classList.contains("is-menu-open"));
+  });
+
+  document.addEventListener("click", (e) => {
+    if (root.classList.contains("is-menu-open")) {
+      const target = e.target as HTMLElement;
+      if (!dropdownPanel.contains(target) && !menuButton.contains(target)) {
+        setMenuOpen(false);
+      }
+    }
   });
-  setMenuOpen(true);
+
+  headerHideButton.addEventListener("click", () => setHeaderVisible(false));
+  headerRevealButton.addEventListener("click", () => setHeaderVisible(true));
+
+  setMenuOpen(false);
+  setHeaderVisible(true);
 
-  return { root, setMenuOpen };
+  return { root, setMenuOpen, setHeaderVisible };
 }