Add enterprise features: timeout handling, duration tracking, and health checking

- Add timeout handling to PHP syntax validation
- Add execution duration tracking to smoke_test and validate_all
- Create script_health.sh to validate enterprise standards compliance
- Enhance error messages with better context and actionable guidance
- Add log_duration helper function to common.sh
- Update ENTERPRISE.md and README.md with new features
- All scripts now follow complete enterprise standards

Co-authored-by: jmiller-moko <230051081+jmiller-moko@users.noreply.github.com>

scripts/run/smoke_test.sh

@@ -68,6 +68,8 @@ SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
 # Check dependencies
 check_dependencies python3
 
+START_TIME=$(date +%s)
+
 log_info "Running smoke tests for Moko-Cassiopeia repository"
 log_info "Start time: $(log_timestamp)"
 
@@ -174,4 +176,6 @@ log_info "Extension: ${NAME}"
 log_info "Version: ${VERSION}"
 log_info "Type: ${TYPE}"
 log_info "End time: $(log_timestamp)"
+END_TIME=$(date +%s)
+log_info "Duration: $(log_duration "$START_TIME" "$END_TIME")"
 log_info "========================================="