feat: install korean technical blog skill bundle

.agents/skills의 technical-document-author,
revising-korean-technical-prose, writing-natural-korean을
korean-technical-blog-skills-bundle-v1의 세 스킬로 교체한다.

- writing-korean-technical-blogs: 문제·제약·선택·구현·결과·한계 구조화
- reducing-ai-like-korean-writing: 상투성·추상화·반복 제거
- editing-korean-grammar-and-expression: 맞춤법·띄어쓰기·호응 검수

상류를 수정하지 않고 복사했다. diff -r 0건, MANIFEST.sha256 검증 통과,
번들 validate_skill.py 3/3 PASS.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.agents/skills/writing-korean-technical-blogs/profiles/conversational-tech.yaml

@@ -0,0 +1,11 @@
+id: conversational-tech
+name: 대화형 기술 글
+register: preserve_consistent_haeyo_or_hamnida
+required_meaning:
+  - reader_question
+  - concrete_context
+  - technical_reasoning
+  - verification
+opening: reader_question_or_actual_observation
+ending: decision_and_remaining_question
+allow_humor: only_if_source_contains_it