Wiki cleanup: error-doc removal, dedup merge, link normalization

10_Wiki/Topics 대규모 정리:
- 오류 캡처/미완성 stub 문서 227개 제거
- 교차폴더 중복 43클러스터 병합 (63파일 → redirect)
- 링크명 정규화: 깨진 링크 수정·redirect 직결·개념 매핑 ~2,400건
- 카테고리 MOC 6개 신규 생성
- Graph 섹션 미해결 related-keyword 링크 10,058건 제거

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

10_Wiki/Topics/DevOps_and_Security/IFCjs (Fragment).md

@@ -2,159 +2,26 @@
 id: wiki-2026-0508-ifcjs-fragment
 title: IFCjs (Fragment)
 category: 10_Wiki/Topics
-status: verified
-canonical_id: self
-aliases: [IFC.js, ThatOpen Fragment, web-ifc, BIM web viewer]
-duplicate_of: none
+status: duplicate
+canonical_id: wiki-2026-0508-ifcjs
+duplicate_of: "[[IFCjs]]"
+aliases: []
 source_trust_level: A
-confidence_score: 0.85
-verification_status: applied
-tags: [bim, ifc, threejs, web, fragment]
-raw_sources: []
-last_reinforced: 2026-05-10
+confidence_score: 0.9
+verification_status: redirected
+tags: [duplicate]
+last_reinforced: 2026-05-20
 github_commit: pending
-tech_stack:
-  language: TypeScript
-  framework: Three.js, web-ifc, ThatOpen Components
 ---
 
 # IFCjs (Fragment)
 
-## 매 한 줄
-> **"매 IFC BIM model 의 web-native streaming 형식"**. 매 2021 IFC.js (Antonio Gonzalez Viegas) → 매 2024 ThatOpen Components 로 rebrand 된 toolchain. 매 Fragment format 매 IFC 의 매 GPU-friendly binary representation — 매 1GB IFC 가 매 50MB Fragment 로 압축, 매 browser 의 매 instant load.
-
-## 매 핵심
-
-### 매 IFC 의 limitation
-- 매 STEP-based ASCII format — 매 100MB+ project 매 routine.
-- 매 spatial hierarchy + property + geometry 매 모두 nested — 매 partial load 의 X.
-- 매 Three.js 의 직접 render 의 X — 매 tessellation needed.
-
-### 매 Fragment 의 solution
-- 매 web-ifc (WASM) 가 매 IFC parse + tessellate.
-- 매 결과를 매 Fragment binary (FlatBuffers-based) 로 serialize.
-- 매 InstancedMesh 단위 grouping → 매 draw call 격감.
-- 매 property data 매 별도 SQLite-WASM file → 매 lazy query.
-
-### 매 응용
-1. 건축 설계 review web tool.
-2. Construction 현장 mobile BIM viewer.
-3. Facility management dashboard.
-4. Clash detection web service.
-
-## 💻 패턴
-
-### 1. ThatOpen Components 초기화 (2026)
-```ts
-import * as OBC from "@thatopen/components";
-import * as OBCF from "@thatopen/components-front";
-
-const components = new OBC.Components();
-const worlds = components.get(OBC.Worlds);
-const world = worlds.create<
-  OBC.SimpleScene, OBC.SimpleCamera, OBCF.PostproductionRenderer
->();
-
-world.scene = new OBC.SimpleScene(components);
-world.renderer = new OBCF.PostproductionRenderer(components, container);
-world.camera = new OBC.SimpleCamera(components);
-components.init();
-```
-
-### 2. IFC → Fragment 변환
-```ts
-const ifcLoader = components.get(OBC.IfcLoader);
-await ifcLoader.setup();
-
-const file = await fetch("model.ifc");
-const buffer = new Uint8Array(await file.arrayBuffer());
-const model = await ifcLoader.load(buffer);
-world.scene.three.add(model);
-```
-
-### 3. 미리 만든 Fragment load (instant)
-```ts
-const fragments = components.get(OBC.FragmentsManager);
-const data = await fetch("model.frag").then(r => r.arrayBuffer());
-const group = fragments.load(new Uint8Array(data));
-world.scene.three.add(group);
-```
-
-### 4. Property query (lazy)
-```ts
-const indexer = components.get(OBC.IfcRelationsIndexer);
-await indexer.process(model);
-
-// Get all walls
-const walls = await indexer.getEntitiesByType(model, "IFCWALL");
-for (const expressID of walls) {
-  const props = await model.getProperties(expressID);
-  console.log(props.Name.value);
-}
-```
-
-### 5. Highlight on click
-```ts
-const highlighter = components.get(OBCF.Highlighter);
-highlighter.setup({ world });
-
-highlighter.events.select.onHighlight.add((selection) => {
-  console.log("Selected fragments:", selection);
-});
-```
-
-### 6. Section plane (clipper)
-```ts
-const clipper = components.get(OBC.Clipper);
-clipper.enabled = true;
-container.addEventListener("dblclick", () => clipper.create(world));
-```
-
-### 7. Streaming (large model)
-```ts
-const streamer = components.get(OBCF.IfcStreamer);
-streamer.url = "https://cdn.example.com/fragments/";
-streamer.world = world;
-
-await streamer.load(
-  await fetch("model-streamed.json").then(r => r.json()),
-  true  // coordinate to origin
-);
-```
-
-## 매 결정 기준
-| 상황 | Approach |
-|---|---|
-| Small model (< 50MB IFC) | 직접 IfcLoader.load() |
-| Medium (50-500MB) | 사전 변환된 .frag file |
-| Large (500MB+) | IfcStreamer (tile-based LOD) |
-| Property-heavy query | IfcRelationsIndexer + cached |
-| Mobile viewer | Fragment + simplified geometry |
-
-**기본값**: ThatOpen Components 2026 + Fragment 사전 변환 + property cache.
+> **이 문서는 [[IFCjs]] 의 중복본입니다.** Canonical 문서로 redirect.
 
 ## 🔗 Graph
-- 부모: [[BIM (Building Information Modeling)]] · [[IFC (Industry Foundation Classes)]]
-- 변형: [[Speckle]] · [[xeokit]] · [[Forge Viewer]]
-- 응용: [[Web BIM Viewer]] · [[Clash Detection]] · [[Facility Management]]
-- Adjacent: [[Three.js]] · [[WASM]] · [[FlatBuffers]]
+- 부모: [[IFCjs]] (canonical)
 
-## 🤖 LLM 활용
-**언제**: 매 web-based BIM viewer 매 build. 매 IFC model 매 browser 의 instant load 가 필요. 매 open-source 매 prefer (Forge 의 X).
-**언제 X**: 매 desktop-only workflow (Revit/Navisworks 매 충분). 매 < 10MB model (overkill). 매 photorealistic render (use Unreal/Unity).
-
-## ❌ 안티패턴
-- **IFC 매 매번 parse**: 매 100MB IFC 매 user 마다 30초 wait. 매 backend 사전 변환 필수.
-- **Property 매 eager load**: 매 모든 property 매 memory load → OOM. 매 lazy + query-on-demand.
-- **InstancedMesh 무시**: 매 IFC 의 매 1000+ identical column 매 매 separate Mesh → 매 draw call 폭발.
-- **GlobalId 의 X**: 매 Fragment internal ID 매 IFC GlobalId 와 매 different — 매 cross-system mapping 매 GlobalId 사용.
-
-## 🧪 검증 / 중복
-- Verified (ThatOpen/engine_components GitHub 2026-05, web-ifc 0.0.66+).
-- 신뢰도 A (rapidly-evolving project — 매 minor API drift 가능).
-
-## 🕓 Changelog
+## 🕓 변경 이력
 | 날짜 | 변경 |
 |---|---|
-| 2026-05-08 | Phase 1 |
-| 2026-05-10 | Manual cleanup — ThatOpen Components 2026 API + Fragment streaming |
+| 2026-05-20 | 중복 병합 — canonical 문서로 redirect |