fix(ci): remove PR trigger from release workflow to prevent duplicate execution

[baleen37]

Summary

• PR 트리거 제거로 중복 실행 방지
• 이제 main에 push할 때만 workflow 실행

Test plan

• YAML 문법 검증 완료
• BATS 테스트 101/101 통과
• 워크플로우 로직 검증 완료

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Streamlined the release workflow automation to improve efficiency and consistency of the release process.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

📝 Walkthrough

Walkthrough

Simplifies the release workflow by removing PR merge event gating and conditional branching logic. The workflow now unifies all release steps under a single push-to-main path, eliminating the distinction between PR merge and push events while retaining semantic-release and PR automation.

Changes

Cohort / File(s)	Summary
Release workflow simplification .github/workflows/release.yml	Removed PR merge conditional checks and unified push-to-main logic. Consolidated semantic-release, versioning, commit, branch/PR creation, and auto-merge steps into a single streamlined flow without event-based branching.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• fix(ci): restore PR-based release workflow to comply with branch protection #27: Nearly identical change that removes PR-based gating to simplify release workflow to push-to-main path.
• fix(ci): prevent infinite loop in release workflow #164: Modifies the same release workflow logic, adding bot-exclusion guards alongside conditional handling.
• refactor(ci): consolidate duplicate workflows #43: Alters the same release workflow file by removing workflow steps and changing release behavior.

Suggested labels

released

Poem

🐰 The workflow hops with clarity and grace,
No branching conditions to slow the race,
Push to main—one golden path to take,
Unified release, no choices to make!
Semantic versioning hops so true,
A simpler flow for all to pursue!

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: removing the PR trigger from the release workflow to prevent duplicate executions, which is the core focus of this changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

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