fix: bash syntax error in deploy verify step

[vreshch]

Summary

• Fix invalid bash substring expression ${LIVE_COMMIT:0:8:-no response} → ${LIVE_COMMIT:-no response}
• This caused the verify step to crash instead of retrying

Test plan

• CI passes
• Deploy verify step completes without syntax error

[github-actions]

✅ Pull Request Validation Successful

Step Results:

• ✅ 📦 Install dependencies: true
• ✅ 🔍 Run linting: true
• ✅ 🧪 Run tests: true
• ✅ 🏗️ Build packages: true

🎉 All quality checks passed! Ready to merge.

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🐳 Docker Images Built Successfully!

🏷️ Tag: pr-35

• Backend: ✅ Built
• Frontend: ✅ Built

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⏰ Generated at: 2026-03-15T00:11:15.434Z