docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화

Topic_CSS/Topic_HTML/Topic_JavaScript/Topic_Prompt/Topic_Comfyui 등 기존 카테고리 폴더를 정리하고, Topic_Graphic/Dev 등 신규 산출물과 Topics 내부 세션/메모리 기록을 동기화.
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+---
+id: csharp-oop
+title: "C# - What is OOP?"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["object-oriented programming C#", "DRY principle", "C# OOP 소개"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.83
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["csharp", "programming-language", "w3schools", "oop"]
+raw_sources: ["https://www.w3schools.com/cs/cs_oop.php"]
+applied_in: []
+github_commit: ""
+---
+
+# [[CSharp OOP]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Unlike Topic_C, which never had an OOP chapter at all (procedural only), and Topic_CPP, where OOP was introduced as an OPTIONAL paradigm layered on top of C-style procedural code, this C# chapter frames OOP as the language's core identity from the very first sentence — reinforcing what the Syntax chapter already forced structurally (every line of code must be inside a class): in C#, object-oriented isn't an available style choice the way it was for C++, it's the only way the language works. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Procedural vs. object-oriented** — procedural programming writes procedures/methods that operate on data; OOP creates objects that bundle BOTH data and methods together. [S1]
+- **Claimed OOP advantages** — faster/easier to execute, clearer program structure, supports the DRY principle (Don't Repeat Yourself), enables reusable applications with less code and shorter development time. [S1]
+- **DRY principle** — extract code common to the application into a single place and reuse it, instead of repeating it. [S1]
+- **Class** — a template/blueprint for creating objects. [S1]
+- **Object** — an instance of a class; created objects inherit all variables and methods from their class. [S1]
+- **Class-vs-object illustration** — `Fruit` (class) → `Apple`, `Banana`, `Mango` (objects); `Car` (class) → `Volvo`, `Audi`, `Toyota` (objects). [S1]
+
+## 📖 세부 내용 (Details)
+- No code examples in this chapter — purely conceptual, deferring class/object syntax to the next chapter. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+- **OOP가 선택이 아니라 언어의 본질로 제시됨**: Topic_C에는 OOP 챕터 자체가 없었고(순수 절차적 언어), Topic_CPP는 OOP를 C 스타일 절차적 코드 위에 선택적으로 얹는 패러다임으로 소개했지만, C#은 Syntax 챕터에서 이미 확인된 "모든 코드는 class 안에" 구조적 강제를 그대로 반영해 OOP를 언어의 유일한 작동 방식으로 첫 문장부터 제시한다는 점이 확인됨. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — Fruit/Car를 class로, 그 인스턴스들을 object로 비유하는 개념 설명이 원문에서 제시됨. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+없음 — 이 챕터는 코드 예제가 없는 개념 소개 챕터.
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.83
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[C# Tutorial]]
+- **관련 개념:** [[CSharp Method Parameters Return]], [[CSharp Classes]], [[CPP OOP]]
+- **참조 맥락:** OOP Basics 섹션 — Classes and Objects 챕터로 이어짐.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — C# - What is OOP? — https://www.w3schools.com/cs/cs_oop.php
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "C# - What is OOP?" page (Astra wiki-curation, P-Reinforce v3.1 format).