feat: Add lifecycle hook logging for installation process

- Introduced `AgentStartLifecycle` log message to indicate the start of the lifecycle hook.
- Updated log processing to consider lifecycle start as complete when rebooting or shutting down. This is mainly a UX improvement to show the user the 100% complete before the node is rebooted/shutdown

Signed-off-by: Itxaka <[email protected]>

Author: Itxaka

internal/agent/TUIconstants.go

@@ -91,5 +91,6 @@ const (
 	AgentRecoveryLog      = "Copying /run/cos/state/cOS/active.img source to /run/cos/recovery/cOS/recovery.img"
 	AgentPassiveLog       = "Copying /run/cos/state/cOS/active.img source to /run/cos/state/cOS/passive.img"
 	AgentAfterInstallLog  = "Running after-install hook"
+	AgentStartLifecycle   = "Running Lifecycle hook"
 	AgentCompleteLog      = "Finish Lifecycle hook" // This is the last step before completion so can make it the complete part
 )

internal/agent/TUIinstallProcessPage.go

@@ -273,6 +273,10 @@ func (p *installProcessPage) processLogLines(buf []byte, lastLen int, errorSent
 			p.output <- StepPrefix + InstallPassiveStep
 		} else if strings.Contains(msg, AgentAfterInstallLog) && !strings.Contains(msg, "chroot") {
 			p.output <- StepPrefix + InstallAfterInstallStep
+		} else if strings.Contains(msg, AgentStartLifecycle) && mainModel.finishAction != "nothing" {
+			// Lifecycle start can be considered as finished if we are rebooting or shutting down as that hook
+			// will reboot/shutdown the system and not return any log after that
+			p.output <- StepPrefix + InstallCompleteStep
 		} else if strings.Contains(msg, AgentCompleteLog) {
 			p.output <- StepPrefix + InstallCompleteStep
 		}