merge(D 예정노선): dev 받기 — 604 영역 루틴(fetchLayer · areaTurn · load(have) · track) 과 605 올린 임도망 묶음(applyRoads · deleteRoad · pickRoad) 함께 살림 · 옛 haveTag · sheetLayer 뺌 (PLAN 605 · 요구 475 · 476)

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

D03_PlanAnalysis/D03_PlanAnalysis_Router.py

@@ -290,12 +290,51 @@ async def _layer_root(project_id: UUID) -> tuple[Path, int, terrain.Box]:
     return root, epsg, box
 
 
+SHEET_CLIP_KIND = "plan_sheet"
+SHEET_CLIP_VERSION = 1
+
+
+def _clip_to_box(root: Path, source: Path, box: terrain.Box, epsg: int) -> Path:
+    """받은 범위(경위도 외접 상자)로 자른 사본(475) — 열쇠 = 사본 지문 + 범위 · 실패 = 통째."""
+    from B04_PreProcess.B04_PreProcess_Engine_SheetClip import clip_collection
+    from common_util.common_util_derived_store import (
+        derived_dir,
+        derived_key,
+        file_stamp,
+        prune_derived,
+    )
+
+    try:
+        bounds = layers._lonlat_bounds(box, epsg)
+        rect = (bounds["min_lon"], bounds["min_lat"], bounds["max_lon"], bounds["max_lat"])
+        key = derived_key(
+            SHEET_CLIP_VERSION, source.name, file_stamp(source), [round(v, 1) for v in box]
+        )
+        target = derived_dir(root, SHEET_CLIP_KIND) / f"{key}.json"
+        if target.is_file():
+            return target
+        collection = json.loads(source.read_text(encoding="utf-8"))
+        text = json.dumps(
+            clip_collection(collection, rect), ensure_ascii=False, separators=(",", ":")
+        )
+        target.parent.mkdir(parents=True, exist_ok=True)
+        temporary = target.with_suffix(f".{uuid4().hex}.tmp")
+        temporary.write_text(text, encoding="utf-8")
+        temporary.replace(target)
+        prune_derived(root, SHEET_CLIP_KIND, keep=2 * len(layers.SHEET_LAYERS))
+        return target
+    except Exception as error:  # 자르기 실패가 화면을 막으면 안 됨
+        logger.warning("도엽 겹 받은 범위 자름 실패 (%s): %s", source.name, error)
+        return source
+
+
 @router.get("/{project_id}/plan/layers/sheet", response_model=None)
 async def plan_layer_sheet(project_id: UUID, key: str, request: Request) -> Response:
-    """도엽 겹 GeoJSON(하천중심선 · 도로중심선 …) — 없으면 지난 병합 도엽에서 풀어 냄."""
+    """도엽 겹 GeoJSON(등고선 · 하천중심선 · 도로중심선 …) — 없으면 지난 병합 도엽에서 풀어 냄 ·
+    받은 범위로 자름(475 · 범위가 늘면 새 사본)."""
     from B04_PreProcess.B04_PreProcess_Router_GIS import _display_copy
 
-    root, _, _ = await _layer_root(project_id)
+    root, epsg, box = await _layer_root(project_id)
     try:
         path = await asyncio.to_thread(layers.ensure_sheet_layer, root, key)
     except KeyError as error:
@@ -303,7 +342,8 @@ async def plan_layer_sheet(project_id: UUID, key: str, request: Request) -> Resp
     except FileNotFoundError as error:
         raise HTTPException(status_code=404, detail=str(error)) from error
     display = await asyncio.to_thread(_display_copy, path)
-    return cached_file_response(request, display, "application/geo+json")
+    clipped = await asyncio.to_thread(_clip_to_box, root, display, box, epsg)
+    return cached_file_response(request, clipped, "application/geo+json")
 
 
 @router.get("/{project_id}/plan/layers/cadastral", response_model=None)