refactor(monitoring): remove hardcoded tool paths

Remove SAPCONTROL_PATH and HDBSQL_PATH variables from configuration.
Update scripts to rely on the system PATH environment variable when
executing as the <sid>adm user. Remove redundant existence checks for
these commands.

hana_processes.sh

@@ -19,15 +19,8 @@ trap 'release_lock "$SCRIPT_NAME"' EXIT
 
 log_message "$SCRIPT_NAME" "Starting HANA process status check..."
 
-# Check if sapcontrol is available
-if [ ! -x "$SAPCONTROL_PATH" ]; then
-    log_message "$SCRIPT_NAME" "ERROR: sapcontrol not found or not executable at ${SAPCONTROL_PATH}"
-    send_alert "$SCRIPT_NAME" "HANA Monitor Error" "sapcontrol not found or not executable at ${SAPCONTROL_PATH}"
-    exit 1
-fi
-
 # Get process list
-process_list=$(su - "$HANA_USER" -c "${SAPCONTROL_PATH} -nr ${HANA_INSTANCE_NR} -function GetProcessList" 2>&1)
+process_list=$(su - "$HANA_USER" -c "sapcontrol -nr ${HANA_INSTANCE_NR} -function GetProcessList" 2>&1)
 sapcontrol_status=$?
 
 if [ $sapcontrol_status -ne 0 ]; then