fix(claude-code-hooks): deduplicate settings paths to prevent double hook execution

[khduy]

Summary

When the current working directory equals the home directory, ~/.claude/settings.json was being loaded twice:

1. Once as the home config (~/.claude/settings.json)
2. Once as the cwd config (process.cwd()/.claude/settings.json)

This caused hooks like Stop to execute twice, resulting in sounds playing twice, notifications appearing twice, etc.

Fix

Added deduplication using Set in getClaudeSettingsPaths() to ensure each config file path is only included once.

Testing

Verified locally that Stop hooks now execute only once when cwd is the home directory.

---

Summary by cubic

Prevents double execution of Claude Code hooks by deduplicating settings file paths. Fixes the case where ~/.claude/settings.json was loaded twice when the cwd is the home directory.

• Bug Fixes
  • Deduplicate paths in getClaudeSettingsPaths using Set so each config loads once.
  • Hooks (e.g., Stop) now fire once when cwd equals home.

^{Written for commit 4c40c3a. Summary will update on new commits.}

[github-actions]

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[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

[khduy]

I have read the CLA Document and I hereby sign the CLA