diff --git a/docs/raw/요구_1021/사용자요구_1021.md b/docs/raw/요구_1021/사용자요구_1021.md
index 9f0676f3f..648224e76 100644
--- a/docs/raw/요구_1021/사용자요구_1021.md
+++ b/docs/raw/요구_1021/사용자요구_1021.md
@@ -42,3 +42,7 @@
 
 1. 2번 필요없음.
 2. 4번 45개를 전체다 선택 가능하게 하려면? 어떻게 해야함? 일단 방법만 공유
+
+## 요구 316 (10-21 · 사용자 · 추가 분석 요청)
+
+1. B05의 평면의 분석지형에서 수치지형도를 선택하면 화면제어가 느려지는 이유는?
diff --git a/resources/tester/helper_verify_project.py b/resources/tester/helper_verify_project.py
index 97c768b7d..7de794f27 100644
--- a/resources/tester/helper_verify_project.py
+++ b/resources/tester/helper_verify_project.py
@@ -53,3 +53,15 @@ def find_project(*rels: str) -> Path:
         and (project / "B06_Section" / "cross_sections").is_dir()
     ]
     return min(found, key=lambda project: _touched(project, rels), default=NONE)
+
+
+def own_ports() -> tuple[str, str]:
+    """OWNERS.md 표에서 이 폴더 줄의 (API, vite) 주소 — 줄이 없으면 빈 글 둘(시험이 안 돎 · 508-1a)."""
+    owners = ROOT / "OWNERS.md"
+    for line in owners.read_text(encoding="utf-8-sig").splitlines() if owners.is_file() else []:
+        cells = [cell.strip().strip("`") for cell in line.strip().strip("|").split("|")]
+        if len(cells) >= 5 and Path(cells[2]).resolve() == ROOT.resolve():
+            ports = re.findall(r"\d{4,5}", cells[4])
+            if len(ports) == 2:
+                return f"http://localhost:{ports[0]}", f"http://localhost:{ports[1]}"
+    return "", ""
diff --git a/resources/tester/test_225_drawer_shortcuts.py b/resources/tester/test_225_drawer_shortcuts.py
index 30d355060..7265294b1 100644
--- a/resources/tester/test_225_drawer_shortcuts.py
+++ b/resources/tester/test_225_drawer_shortcuts.py
@@ -19,7 +19,9 @@ from pathlib import Path
 import pytest
 
 ROOT = Path(__file__).resolve().parents[2]
-BASE = os.environ.get("AISLO_UI_BASE", "http://localhost:5177")  # sub2 화면 서버(OWNERS 자기 줄)
+from helper_verify_project import own_ports  # noqa: E402
+
+BASE = os.environ.get("AISLO_UI_BASE", own_ports()[1])  # 화면 서버 = OWNERS.md 이 폴더 줄
 LAYOUT = ROOT / "ui_template" / "ui_template_workflow_layout.ts"
 NAV = ROOT / "A00_Common" / "m_settings_nav.ts"
 STEPS = ["파일입력", "전처리", "종단설계"]
diff --git a/resources/tester/test_309_2_calc_sites_browser.py b/resources/tester/test_309_2_calc_sites_browser.py
index 11f1eb950..804eee455 100644
--- a/resources/tester/test_309_2_calc_sites_browser.py
+++ b/resources/tester/test_309_2_calc_sites_browser.py
@@ -13,7 +13,6 @@ from __future__ import annotations
 
 import asyncio
 import json
-import re
 import subprocess
 import urllib.request
 from pathlib import Path
@@ -22,20 +21,9 @@ import pytest
 
 ROOT = Path(__file__).resolve().parents[2]
 
+from helper_verify_project import own_ports  # noqa: E402
 
-def _own_ports() -> list[str]:
-    """OWNERS.md 표에서 이 폴더 줄의 (API, vite) 포트(508-1a)."""
-    for line in (ROOT / "OWNERS.md").read_text(encoding="utf-8-sig").splitlines():
-        cells = [cell.strip().strip("`") for cell in line.strip().strip("|").split("|")]
-        if len(cells) >= 5 and Path(cells[2]).resolve() == ROOT.resolve():
-            return re.findall(r"\d{4,5}", cells[4])
-    return []
-
-
-_PORTS = _own_ports()
-API, BASE = (
-    [f"http://localhost:{port}" for port in _PORTS] if len(_PORTS) == 2 else ["", ""]
-)  # 이 폴더 백엔드 · 그 백엔드를 프록시하는 vite
+API, BASE = own_ports()  # 이 폴더 백엔드 · 그 백엔드를 프록시하는 vite(OWNERS.md 이 폴더 줄)
 BOARD = ROOT / "resources" / "master_template" / "calc_sites.json"
 PROJECT = "cb15892a-5788-4a26-9316-20a15421f68b"  # 검증_sub2(OWNERS.md)
 SHOTS = ROOT / "tmp" / "shots_504_2"
diff --git a/resources/tester/test_349_0j_draft_vs_saved.py b/resources/tester/test_349_0j_draft_vs_saved.py
index 5eea91ca9..d25d7fd66 100644
--- a/resources/tester/test_349_0j_draft_vs_saved.py
+++ b/resources/tester/test_349_0j_draft_vs_saved.py
@@ -87,6 +87,7 @@ def _server(ts: dict, sampler) -> list[dict]:
                 "cut": design["cut_area_m2"],
                 "fill": design["fill_area_m2"],
                 "lineEnds": [line[0]["offset_m"], line[-1]["offset_m"]],
+                "unclosed": wide is not None,
             }
         )
     return out
@@ -172,9 +173,8 @@ def test_격자_없으면_넓힘_없음(r):
 
 
 def test_초안_상세_표본은_넓힌_표본(r):
-    widened = [
-        s for s in r["wide"]["stations"] if s["lineEnds"] and max(map(abs, s["lineEnds"])) > 20.01
-    ]
+    # 넓힘 표본 = 서버 `extend_unclosed` 가 표본을 낸 미교차 측점(지표면 끝에 막혀 못 넓혀도 · 508-1c)
+    widened = [s for s in r["server"] if s["unclosed"]]
     assert r["wide"]["shownWide"] == len(widened)  # 349-0n — 서버도 넓힌 표본을 상세에 남김
     assert r["plain"]["shownWide"] == 0
 
diff --git a/resources/tester/test_505_3_cross_card_screen.py b/resources/tester/test_505_3_cross_card_screen.py
index ffb9530e4..34cd6abe4 100644
--- a/resources/tester/test_505_3_cross_card_screen.py
+++ b/resources/tester/test_505_3_cross_card_screen.py
@@ -19,7 +19,9 @@ import pytest
 
 ROOT = Path(__file__).resolve().parents[2]
 # 기본 = sub4 환경 · 다른 창은 AISLO_505_3_BASE · AISLO_505_3_PROJECT 로 바꿔 test_0 만 돌림(test_1 · 2 는 sub4 자료)
-BASE = os.environ.get("AISLO_505_3_BASE", "http://localhost:5179")
+from helper_verify_project import own_ports  # noqa: E402
+
+BASE = os.environ.get("AISLO_505_3_BASE", own_ports()[1])  # 화면 서버 = OWNERS.md 이 폴더 줄
 PROJECT = os.environ.get("AISLO_505_3_PROJECT", "c725d747-50ae-46b0-87ce-4d4e56a53cf3")  # 검증_sub4
 SHOTS = ROOT / "tmp" / "shots_505_3"
 PIPE_M = 388  # 검증_sub4 배관 하나(관경 빈칸 · 19+8)
diff --git a/resources/tester/test_505_4_refresh_blank_pipe.py b/resources/tester/test_505_4_refresh_blank_pipe.py
index 7921a19da..7f44abdd0 100644
--- a/resources/tester/test_505_4_refresh_blank_pipe.py
+++ b/resources/tester/test_505_4_refresh_blank_pipe.py
@@ -14,7 +14,9 @@ from pathlib import Path
 import pytest
 
 ROOT = Path(__file__).resolve().parents[2]
-BASE = "http://localhost:5179"
+from helper_verify_project import own_ports  # noqa: E402
+
+BASE = own_ports()[1]  # 화면 서버 = OWNERS.md 이 폴더 줄
 PROJECT = "c725d747-50ae-46b0-87ce-4d4e56a53cf3"  # 검증_sub4(OWNERS.md)
 LIST_URL = f"{BASE}/api/projects/{PROJECT}/route/structures"
 
diff --git a/resources/tester/test_506_3_b07_browser.py b/resources/tester/test_506_3_b07_browser.py
index 667c53788..c0c275adb 100644
--- a/resources/tester/test_506_3_b07_browser.py
+++ b/resources/tester/test_506_3_b07_browser.py
@@ -26,7 +26,9 @@ import pytest
 
 ROOT = Path(__file__).resolve().parents[2]
 sys.path.insert(0, str(ROOT))
-BASE = "http://localhost:5177"
+from helper_verify_project import own_ports  # noqa: E402
+
+BASE = own_ports()[1]  # 화면 서버 = OWNERS.md 이 폴더 줄
 PROJECT = "cb15892a-5788-4a26-9316-20a15421f68b"  # 검증_sub2(OWNERS.md)
 SHOTS = ROOT / "tmp" / "shots_506_3"
 COLS = (
diff --git a/resources/tester/test_app_settings.py b/resources/tester/test_app_settings.py
index 1bc7f5011..a453f953a 100644
--- a/resources/tester/test_app_settings.py
+++ b/resources/tester/test_app_settings.py
@@ -18,7 +18,9 @@ import pytest
 HERE = os.path.dirname(__file__)
 ROOT = os.path.join(HERE, "..", "..")
 # 화면 서버(OWNERS 자기 줄) — 돌리는 창 포트로 바꿈
-BASE = os.environ.get("AISLO_UI_BASE", "http://localhost:5177")
+from helper_verify_project import own_ports  # noqa: E402
+
+BASE = os.environ.get("AISLO_UI_BASE", own_ports()[1])
 KEY = "aislo:pref:input-prefs"
 
 # 앱 스크립트보다 먼저 — 설정 키에 쓰는 횟수를 셈
diff --git a/resources/tester/test_cad_touch.py b/resources/tester/test_cad_touch.py
index 386dd5ac1..65fcd318a 100644
--- a/resources/tester/test_cad_touch.py
+++ b/resources/tester/test_cad_touch.py
@@ -10,7 +10,9 @@ import urllib.request
 
 import pytest
 
-URL = os.environ.get("CAD_TOUCH_URL", "http://localhost:5174/b07-cad/")
+from helper_verify_project import own_ports  # noqa: E402
+
+URL = os.environ.get("CAD_TOUCH_URL", f"{own_ports()[1]}/b07-cad/")  # OWNERS.md 이 폴더 줄
 
 
 def _up() -> bool:
diff --git a/resources/tester/test_device_audit.py b/resources/tester/test_device_audit.py
index aaf6d0404..c5f3a2023 100644
--- a/resources/tester/test_device_audit.py
+++ b/resources/tester/test_device_audit.py
@@ -20,7 +20,9 @@ import pytest
 
 ROOT = Path(__file__).resolve().parents[2]
 # 다른 창 서버로 돌릴 때 — AISLO_UI_BASE · AISLO_UI_PROJECT(OWNERS 자기 줄)
-BASE = os.environ.get("AISLO_UI_BASE", "http://localhost:5174")
+from helper_verify_project import own_ports  # noqa: E402
+
+BASE = os.environ.get("AISLO_UI_BASE", own_ports()[1])
 PROJECT_NAME = os.environ.get("AISLO_UI_PROJECT", "검증_sub1")
 PAGES = [
     "a01-home",
diff --git a/resources/tester/test_spreadsheet_touch.py b/resources/tester/test_spreadsheet_touch.py
index f989f40bf..7c51e5620 100644
--- a/resources/tester/test_spreadsheet_touch.py
+++ b/resources/tester/test_spreadsheet_touch.py
@@ -10,7 +10,9 @@ import urllib.request
 
 import pytest
 
-BASE = "http://localhost:5174"
+from helper_verify_project import own_ports  # noqa: E402
+
+BASE = own_ports()[1]  # 화면 서버 = OWNERS.md 이 폴더 줄
 
 MOUNT = """
 async () => {
diff --git a/resources/tester/test_touch_bridge.py b/resources/tester/test_touch_bridge.py
index d6c6b4f88..98a5bd50d 100644
--- a/resources/tester/test_touch_bridge.py
+++ b/resources/tester/test_touch_bridge.py
@@ -13,7 +13,9 @@ import urllib.request
 
 import pytest
 
-BASE = os.environ.get("AISLO_UI_BASE", "http://localhost:5174")  # 다른 창 서버 = 환경값
+from helper_verify_project import own_ports  # noqa: E402
+
+BASE = os.environ.get("AISLO_UI_BASE", own_ports()[1])  # 다른 창 서버 = 환경값
 
 
 def _up() -> bool: