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/AI_and_ML/Principle-Component-Analysis.md

@@ -149,9 +149,8 @@ plt.axhline(0.95, ls="--"); plt.xlabel("# components"); plt.ylabel("cumulative v
 **기본값**: StandardScaler → PCA(n_components=0.95) → downstream model.
 
 ## 🔗 Graph
-- 부모: [[Linear-Algebra]] · [[Unsupervised-Learning]] · [[Dimensionality-Reduction]]
-- 변형: [[Kernel-PCA]] · [[Sparse-PCA]] · [[Robust-PCA]] · [[Probabilistic-PCA]]
-- 응용: [[Data-Visualization]] · [[Feature-Engineering]] · [[Anomaly-Detection]] · [[Mechanistic-Interpretability]]
+- 부모: [[Linear-Algebra-Foundations|Linear-Algebra]] · [[Dimensionality-Reduction]]
+- 응용: [[Feature Engineering|Feature-Engineering]] · [[Anomaly-Detection]] · [[Mechanistic-Interpretability]]
 - Adjacent: [[SVD]] · [[ICA]] · [[Factor-Analysis]] · [[Autoencoder]] · [[UMAP]]
 
 ## 🤖 LLM 활용