docs(10_Wiki): Dev 폴더 누락분 반영 — Topic_Programming으로 통합

이전 재구성 작업에서 Dev/ 폴더가 누락되었던 것을 반영. - Dev/Topic_Programming(중첩 폴더, 78개)은 Dev 자체 최상위 폴더들 (Architecture/Conventions/Engineering_Intelligence 등)과 완전 중복이라 제거. - Dev 최상위 엔지니어링 지식 폴더(Architecture/Conventions/Engineering_Intelligence/ Failure_Library/Generalized_Principles/Language/Pattern_Catalog/Platform_Guides/ Subsystems, 77개)는 이미 Topic_Programming/Topic_Programming에 더 최신 버전이 존재해 중복 제거(고유 콘텐츠 1개는 예외 처리하여 이동 보존). - Dev의 W3Schools 언어 튜토리얼 폴더(Topic_C/CPP/CSS/CSharp/HOWTO/HTML/Java/ JavaScript/PHP/Python/SQL/W3CSS, 1201개)는 전부 Topic_Programming 하위로 이동. - 에이전트 운영 상태(.astra/docs)는 그대로 유지, 콘텐츠 폴더만 정리. - Topic_Programming 최종 문서 수: 2784 → 3985.
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+---
+id: csharp-get-started
+title: "C# Get Started"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["Visual Studio setup", "C# IDE", "C# 시작하기"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.85
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["csharp", "programming-language", "w3schools", "setup", "visual-studio"]
+raw_sources: ["https://www.w3schools.com/cs/cs_getstarted.php"]
+applied_in: []
+github_commit: ""
+---
+
+# [[CSharp Get Started]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Unlike C/C++'s tutorial-neutral "any compiler will do" framing, this chapter names ONE specific tool — Visual Studio Community — as the recommended path, and justifies it not on technical merit but on ownership: "the program, the framework, and the language are all created by Microsoft," a same-vendor argument that has no equivalent in the C/C++ chapters (gcc/clang are not made by the same organization that wrote the C/C++ standard). [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **IDE (Integrated Development Environment)** — used to edit and compile code; Visual Studio Community is the recommended free option. [S1]
+- **Same-vendor stack** — Visual Studio, the .NET Framework, and C# are all Microsoft products, which is given as the reason to prefer Visual Studio specifically. [S1]
+- **Console App (.NET Core)** project template — the starting project type used throughout the tutorial. [S1]
+- **Auto-generated boilerplate** — creating a new console project auto-generates a `Program.cs` file containing `using System;`, a `namespace`, a `class Program`, and a `static void Main(string[] args)` method with a `Console.WriteLine("Hello World!");` call — introduced here without explanation, to be unpacked in the next chapter (Syntax). [S1]
+- **F5 to run** — pressing F5 (or Debug → Start Debugging) compiles and executes the code. [S1]
+- **W3Schools "Try it Yourself"** — the tutorial's own in-browser alternative to installing Visual Studio, used throughout the rest of the series. [S1]
+
+## 📖 세부 내용 (Details)
+- Full auto-generated starter file:
+  ```
+  using System;
+  namespace HelloWorld
+  {
+      class Program
+      {
+          static void Main(string[] args)
+          {
+              Console.WriteLine("Hello World!");
+          }
+      }
+  }
+  ```
+  [S1]
+- Expected console output after running: `Hello World!` followed by a process-exit message. [S1]
+- A debugging option is mentioned to auto-close the console window when debugging stops (Tools → Options → Debugging). [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+- **툴체인 선택이 언어와 결합됨**: C/C++ 튜토리얼은 컴파일러 선택을 사용자에게 맡기고 어떤 표준 준수 컴파일러든 무방하다는 전제였지만, C#은 처음부터 "언어·프레임워크·IDE가 모두 같은 회사 제품"이라는 이유로 Visual Studio를 사실상 유일한 권장 경로로 제시한다는 점이 확인됨. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+Visual Studio에서 새 Console App (.NET Core) 프로젝트를 생성하고 F5로 실행해 "Hello World!"를 출력하는 전체 설치→실행 흐름이 원문에서 직접 실전 활용 사례로 제시됨. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Auto-generated Visual Studio console app boilerplate (C#):
+```csharp
+using System;
+namespace HelloWorld
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Hello World!");
+        }
+    }
+}
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.85
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[C# Tutorial]]
+- **관련 개념:** [[CSharp Intro]], [[CSharp Syntax]]
+- **참조 맥락:** Basics 섹션 — Syntax 챕터로 이어짐(이 챕터에서 등장한 보일러플레이트를 한 줄씩 설명).
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — C# Get Started — https://www.w3schools.com/cs/cs_getstarted.php
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "C# Get Started" page (Astra wiki-curation, P-Reinforce v3.1 format).