ci: harden integration test script and improve logcat handling

[Gorlesunilkumar]

This PR improves the stability, safety, and reliability of the integration test Bash script used in the Android CI pipeline.

✔ Summary of Improvements

The update focuses on modernizing the script, preventing silent failures, and ensuring logcat output is reliably collected and uploaded when tests fail.

🔧 Key Changes

• Enabled strict Bash mode (set -euo pipefail) for safer execution
• Quoted all variable expansions to avoid word-splitting and globbing issues
• Replaced hardcoded Codecov token with secure environment variable usage
• Ensured clean termination of background logcat using:
  • wait "$LOGCAT_PID" to flush output
  • kill "$LOGCAT_PID" 2>/dev/null || true to avoid CI crashes
• Improved logcat upload logic and error handling
• Ensured correct exit code propagation to Drone CI
• General cleanup to follow Bash best practices

💡 Why This Matters

The previous script:

• could hide failed commands,
• could produce truncated or inconsistent logs,
• leaked a sensitive token,
• and could fail unpredictably in CI.

This update makes integration tests more secure, deterministic, and easier to debug—benefiting both maintainers and contributors.

🧪 Testing Notes

Only CI-related behavior was modified.
No application logic is affected.

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This PR does not change app functionality for users but significantly improves CI maintainability and reliability.

[Gorlesunilkumar]

merge it

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