feat: replace 2 m placeholder with station pattern table from the workbook (Task 5)

Source: RAG 지보패턴현황_20260918.xlsx, sheet 참고_지보패턴현황, 당진방향 table
(4+740..5+500, 42 contiguous rows). Lining pattern (M column) per station now
drives the lining colour and the viewer readout. Daesan table kept as reference
only (WL-4 there, not applied). Drawing patterns E-1, E-2, RP-2, WL-3 are in
neither table and stay [미확정].

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A

data/pattern_stations_daesan_ref.csv

@@ -0,0 +1,43 @@
+direction,source_row,sta_from,sta_to,length_m,lining_pattern,excavation,excavation_inherited,method,remark
+대산,13,4740.85,4758.85,18,P-3,NP-6,False,"상·하
+반단면",
+대산,14,4758.85,4768.85,10,WL-4,NP-5,False,,
+대산,15,4768.85,4792.85,24,WL-2,NP-5,True,,
+대산,16,4792.85,4839.85,47,D-2,NP-4,False,,
+대산,17,4839.85,4848.85,9,D-1,NP-4,True,,
+대산,18,4848.85,4857.85,9,C-2,NP-4,True,전단면,
+대산,19,4857.85,4862.85,5,C-1,C-1,False,,
+대산,20,4862.85,4868.85,6,B-2,B-2,False,,
+대산,21,4868.85,4874.85,6,B-1,B-1,False,,
+대산,22,4874.85,4908.85,34,A,A,False,,
+대산,23,4908.85,4916.67,7.819999999999709,B-1,B-1,False,,
+대산,24,4916.67,4936.67,20,RP-1,RP-1,False,,"대인용
+ 연결통로 접속부"
+대산,25,4936.67,4946.85,10.180000000000291,C-1,C-1,False,,
+대산,26,4946.85,4965.85,19,C-2,C-2,False,,
+대산,27,4965.85,4979.85,14,C-1,C-1,False,,
+대산,28,4979.85,4987.950000000001,8.100000000000364,B-2,B-2,False,,
+대산,29,4987.950000000001,4995.950000000001,8,B-1,B-1,False,,
+대산,30,4995.950000000001,5107.2300000000005,111.27999999999975,A,A,False,,
+대산,31,5107.2300000000005,5127.2300000000005,20,RP-1,RP-1,False,,"차량용
+ 연결통로 접속부"
+대산,32,5127.2300000000005,5139.450000000001,12.220000000000255,B-1,B-1,False,,
+대산,33,5139.450000000001,5163.450000000001,24,B-2,B-2,False,,
+대산,34,5163.450000000001,5205.450000000001,42,C-1,C-1,False,,
+대산,35,5205.450000000001,5235.450000000001,30,B-2,B-2,False,,
+대산,36,5235.450000000001,5279.35,43.899999999999636,B-1,B-1,False,,
+대산,37,5279.35,5296.67,17.31999999999971,A,A,False,,
+대산,38,5296.67,5316.67,20,RP-1,RP-1,False,,"대인용
+ 연결통로 접속부"
+대산,39,5316.67,5355.35,38.68000000000029,A,A,False,,
+대산,40,5355.35,5362.35,7,B-1,B-1,False,,
+대산,41,5362.35,5376.35,14,B-2,B-2,False,,
+대산,42,5376.35,5382.35,6,WL-2,WL-2,False,상·하 반단면,
+대산,43,5382.35,5388.35,6,C-1,C-1,False,전단면,
+대산,44,5388.35,5398.35,10,C-2,C-2,False,,
+대산,45,5398.35,5445.35,47,D-1,NP-4,False,"상·하
+반단면",
+대산,46,5445.35,5458.35,13,WL-2,NP-5,False,,
+대산,47,5458.35,5464.35,6,P-2,NP-6,False,,
+대산,48,5464.35,5491.29,26.9399999999996,P-3,NP-6,True,,
+대산,49,5491.29,5496.29,5,개착부,NP-6,True,,개착부

data/pattern_stations_dangjin.csv

@@ -0,0 +1,48 @@
+direction,source_row,sta_from,sta_to,length_m,lining_pattern,excavation,excavation_inherited,method,remark
+당진,55,4740.0,4745.0,5,개착부,,True,,개착부
+당진,56,4745.0,4763.0,18,P-3,NP-6,False,"상·하
+반단면",
+당진,57,4763.0,4785.0,22,WL-2,NP-5,False,,
+당진,58,4785.0,4796.0,11,WL-1,NP-5,True,,
+당진,59,4796.0,4839.0,43,D-2,NP-4,False,,
+당진,60,4839.0,4848.0,9,D-1,NP-4,True,,
+당진,61,4848.0,4857.0,9,C-2,NP-4,True,전단면,
+당진,62,4857.0,4862.0,5,C-1,NP-4,True,,
+당진,63,4862.0,4867.0,5,B-2,B-2,False,,
+당진,64,4867.0,4873.0,6,B-1,B-1,False,,
+당진,65,4873.0,4907.0,34,A,A,False,,
+당진,66,4907.0,4915.0,8,B-1,B-1,False,,
+당진,67,4915.0,4920.0,5,B-2,B-2,False,,
+당진,68,4920.0,4940.0,20,RP-1,B-2,True,,"대인용
+ 연결통로 접속부"
+당진,69,4940.0,4988.0,48,C-1,C-1,False,,
+당진,70,4988.0,4998.0,10,B-2,B-2,False,,
+당진,71,4998.0,5006.0,8,B-1,B-1,False,,
+당진,72,5006.0,5019.0,13,B-2,B-2,False,,
+당진,73,5019.0,5025.0,6,B-1,B-1,False,,
+당진,74,5025.0,5110.0,85,A,A,False,,
+당진,75,5110.0,5130.0,20,RP-1,A,True,,"차량용
+ 연결통로 접속부"
+당진,76,5130.0,5140.0,10,B-1,B-1,False,,
+당진,77,5140.0,5157.0,17,B-2,B-2,False,,
+당진,78,5157.0,5204.0,47,C-1,C-1,False,,
+당진,79,5204.0,5211.0,7,B-2,B-2,False,,
+당진,80,5211.0,5221.0,10,B-1,B-1,False,,
+당진,81,5221.0,5259.0,38,A,A,False,,
+당진,82,5259.0,5279.0,20,B-1,B-1,False,,
+당진,83,5279.0,5300.0,21,A,A,False,,
+당진,84,5300.0,5320.0,20,RP-1,A,True,,"대인용
+ 연결통로 접속부"
+당진,85,5320.0,5357.0,37,A,A,False,,
+당진,86,5357.0,5363.0,6,B-1,B-1,False,,
+당진,87,5363.0,5377.0,14,B-2,B-2,False,,
+당진,88,5377.0,5390.0,13,C-1,C-1,False,,
+당진,89,5390.0,5399.0,9,C-2,C-2,False,,
+당진,90,5399.0,5406.0,7,D-1,NP-4,False,"상·하
+반단면",
+당진,91,5406.0,5427.0,21,D-2,NP-4,True,,
+당진,92,5427.0,5446.0,19,D-1,NP-4,True,,
+당진,93,5446.0,5462.0,16,WL-2,NP-5,False,,
+당진,94,5462.0,5468.0,6,P-2,NP-6,False,,
+당진,95,5468.0,5495.0,27,P-3,NP-6,True,,
+당진,96,5495.0,5500.0,5,개착부,NP-6,True,,개착부

data/verify_skeleton.json

@@ -6,15 +6,22 @@
   "road_z_5480_m": 67.311,
   "plan_chord_length_total_m (4+700..5+500)": 799.905,
   "station_range_modelled": "4745 .. 5480 (ring step 1.0 m, 736 rings)",
-  "pattern_zones (2 m, placeholder)": 368,
+  "pattern_zones (지보패턴표 당진방향)": 42,
   "pattern_coverage_all_stations": true,
   "pattern_counts": {
-    "NP-4AD-1-D-2": 62,
-    "NP-4BD-1-D-2": 62,
-    "NP-5AE-1-WL-4": 61,
-    "NP-5BE-1-WL-4": 61,
-    "NP-6A": 61,
-    "NP-6B": 61
+    "A": 5,
+    "B-1": 8,
+    "B-2": 7,
+    "C-1": 4,
+    "C-2": 2,
+    "D-1": 3,
+    "D-2": 2,
+    "P-2": 1,
+    "P-3": 2,
+    "RP-1": 3,
+    "WL-1": 1,
+    "WL-2": 2,
+    "개착부": 2
   },
   "glb_bytes": 2201764,
   "glb_reload_geometries": 5