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_Python/Python_Casting.md

@@ -0,0 +1,71 @@
+---
+id: python-casting
+title: "Python Casting"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["int() float() str()", "파이썬 형변환"]
+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: ["python", "programming", "w3schools", "casting"]
+raw_sources: ["https://www.w3schools.com/python/python_casting.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[Python Casting]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Because Python's primitive types are themselves classes, casting is done through constructor function calls (int(), float(), str()) rather than a dedicated cast syntax, and int() truncates rather than rounds. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Casting via constructors** — Python is object-oriented and uses classes even for primitive types, so casting means calling a constructor function. [S1]
+- **`int()`** — builds an integer from an int/float literal (removing decimals) or a string that represents a whole number. [S1]
+- **`float()`** — builds a float from an int/float/string literal representing a float or integer. [S1]
+- **`str()`** — builds a string from a wide variety of data types. [S1]
+
+## 🧩 추출된 패턴 (Extracted patterns)
+- **`int()` truncates, doesn't round** — `int(2.8)` gives `2`, not `3` — casting a float to int discards the decimal portion rather than rounding to the nearest integer. [S1]
+
+## 📖 세부 내용 (Details)
+- Integer casting: `x = int(1); y = int(2.8)  # 2; z = int("3")`. [S1]
+- Float casting: `x = float(1); y = float(2.8); z = float("3"); w = float("4.2")`. [S1]
+- String casting: `x = str("s1"); y = str(2); z = str(3.0)`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — Numbers/Variables 챕터에서 이미 예고된 캐스팅 문법이 여기서 상세화된다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+int() truncates decimals (Python):
+```python
+x = int(1)    # x will be 1
+y = int(2.8)  # y will be 2 (truncated, not rounded)
+z = int("3")  # z will be 3
+```
+
+## ✅ 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:** [[Python Tutorial]]
+- **관련 개념:** [[Python Variables]], [[Python Numbers]], [[Python Data Types]]
+- **참조 맥락:** 타입 간 명시적 변환이 필요할 때 사용 — int() 절삭 동작에 유의.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — Python Casting — https://www.w3schools.com/python/python_casting.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "Python Casting" page (Astra wiki-curation, P-Reinforce v3.1 format).