fix: improve CI test script with environment diagnostics

[4ek0]

Fix: Improve CI test script

Add environment diagnostics at the start of the CI test script to help debug CI failures. The diagnostics print basic system info (date, hostname, OS version) which helps identify runner-specific issues.

Changes

• Added environment verification output to scripts/ci_test.sh

Testing

• The diagnostics are non-destructive and run before any test logic
• Does not affect test execution or results
• Uses only standard POSIX commands (date, whoami, hostname, uname)