chore(release): 0.20.0

PR #1 (feature/rpc-detection-and-fixes) 머지 후 minor bump.
주요 변경:
  - feat(plan): Stage 4 prompt count 정확성 + path param required 강제
  - fix(core/tool): _ANNOTATION_BY_VERB 에 register/regist/reg/insert 추가
  - 코드 리뷰 결함 반영 (CRITICAL #1/#2 + 단위 테스트)

publish.yml 이 GitHub Release 발행 시 PyPI 에 자동 업로드.

Author: da2sy-dev

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "graph-tool-call"
-version = "0.19.1"
+version = "0.20.0"
 description = "Graph-structured tool retrieval for LLM agents — zero-dependency, ontology-aware hybrid search"
 authors = ["SonAIengine"]
 license = "MIT"