refactor(topics): 멀티 에이전트용 지식 재편 — _Common(공통 기본기) + Domain_* 구조

에이전트 8종(대화형/프로그래머 C·S/디자이너/설계자/기획자/QA/PD/PM)에게
[공통 기본 능력 + 롤별 Specialty] 2층으로 지식을 주입하기 위한 재분류.
문서 내용·포맷은 무수정, 폴더 이동만 (6,372개 문서 수 보존 확인).

- Topic_Programming → Domain_Programming (내부 구조 보존)
- Topic_Graphic → Domain_Design
- Topic_Business → Domain_Product
- Topic_General → Domain_General
- _Common 신설: Math(구 Topic_Math_Specialty), Reasoning(구 General/From_Thinking & Reasoning),
  Reasoning_Creativity(구 General/From_창의성), Communication(Poetic_Blog_Writing + From_writing)
- 타 도메인의 From_* 폴더는 유지 (출처 표기일 뿐, 이미 도메인에 맞게 분류된 문서)
- 빈 폴더 정리 (memory/procedures)
- 에이전트→폴더 매핑은 workspace의 .astra/agent-knowledge-map.json (9개 에이전트)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

10_Wiki/Topics/Domain_Programming/Topic_Java/Java_Variables.md

@@ -0,0 +1,77 @@
+---
+id: java-variables
+title: "Java Variables"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["자바 변수"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.9
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["java", "programming", "w3schools", "variables"]
+raw_sources: ["https://www.w3schools.com/java/java_variables.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[Java Variables]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Unlike Python, Java is statically typed — every variable declaration must state a type (`type variableName = value;`), and that type cannot silently change later the way Python's dynamic typing allows. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Basic types** — `String` (text, double-quoted), `int` (whole numbers), `float` (decimals), `char` (single character, single-quoted), `boolean` (true/false). [S1]
+- **Declaration syntax** — `type variableName = value;`. [S1]
+- **Declare-then-assign** — `int myNum; myNum = 15;` is also valid, splitting declaration and assignment. [S1]
+- **Reassignment overwrites** — assigning a new value replaces the old one. [S1]
+- **`final` keyword** — makes a variable unchangeable/read-only; reassigning raises a compile error. [S1]
+
+## 🧩 추출된 패턴 (Extracted patterns)
+- **Static typing is the core Java/Python divergence** — every Java variable's type is fixed at declaration and enforced by the compiler, unlike Python where `x = 4; x = "Sally"` is legal. [S1]
+
+## 📖 세부 내용 (Details)
+- String declaration: `String name = "John"; System.out.println(name);`. [S1]
+- Int declaration: `int myNum = 15;`. [S1]
+- Separate declare/assign: `int myNum; myNum = 15;`. [S1]
+- Reassignment: `int myNum = 15; myNum = 20;`. [S1]
+- final (immutable): `final int myNum = 15; myNum = 20; // error`. [S1]
+- All basic types together: `int myNum = 5; float myFloatNum = 5.99f; char myLetter = 'D'; boolean myBool = true; String myText = "Hello";`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — 이후 Data Types 챕터에서 각 타입이 상세히 다뤄진다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Five basic types declared (Java):
+```java
+int myNum = 5;
+float myFloatNum = 5.99f;
+char myLetter = 'D';
+boolean myBool = true;
+String myText = "Hello";
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.90
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[Java Tutorial]]
+- **관련 개념:** [[Java Data Types]], [[Java Constants Final]], [[Python Variables]]
+- **참조 맥락:** 정적 타이핑이라는 Java의 핵심 특성 — Python의 동적 타이핑과 대비.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — Java Variables — https://www.w3schools.com/java/java_variables.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "Java Variables" page (Astra wiki-curation, P-Reinforce v3.1 format).