Add deployment improvements and UI enhancements

- Clone specific commit SHA from webhook instead of just branch HEAD
- Log webhook payload in deployment logs
- Add build/deploy timing to ntfy and Slack notifications
- Implement container rollback on deploy failure
- Remove old container only after successful deployment
- Show relative times in deployment history (hover for full date)
- Update port mappings UI with labeled text inputs
- Add footer with version info, license, and repo link
- Format deploy key comment as upaas_DATE_appname

internal/handlers/setup.go

@@ -16,7 +16,7 @@ func (h *Handlers) HandleSetupGET() http.HandlerFunc {
 	tmpl := templates.GetParsed()
 
 	return func(writer http.ResponseWriter, _ *http.Request) {
-		data := map[string]any{}
+		data := h.addGlobals(map[string]any{})
 
 		err := tmpl.ExecuteTemplate(writer, "setup.html", data)
 		if err != nil {
@@ -51,16 +51,16 @@ func validateSetupForm(formData setupFormData) string {
 }
 
 // renderSetupError renders the setup page with an error message.
-func renderSetupError(
+func (h *Handlers) renderSetupError(
 	tmpl *templates.TemplateExecutor,
 	writer http.ResponseWriter,
 	username string,
 	errorMsg string,
 ) {
-	data := map[string]any{
+	data := h.addGlobals(map[string]any{
 		"Username": username,
 		"Error":    errorMsg,
-	}
+	})
 	_ = tmpl.ExecuteTemplate(writer, "setup.html", data)
 }
 
@@ -83,7 +83,7 @@ func (h *Handlers) HandleSetupPOST() http.HandlerFunc {
 		}
 
 		if validationErr := validateSetupForm(formData); validationErr != "" {
-			renderSetupError(tmpl, writer, formData.username, validationErr)
+			h.renderSetupError(tmpl, writer, formData.username, validationErr)
 
 			return
 		}
@@ -95,7 +95,7 @@ func (h *Handlers) HandleSetupPOST() http.HandlerFunc {
 		)
 		if createErr != nil {
 			h.log.Error("failed to create user", "error", createErr)
-			renderSetupError(tmpl, writer, formData.username, "Failed to create user")
+			h.renderSetupError(tmpl, writer, formData.username, "Failed to create user")
 
 			return
 		}
@@ -103,7 +103,7 @@ func (h *Handlers) HandleSetupPOST() http.HandlerFunc {
 		sessionErr := h.auth.CreateSession(writer, request, user)
 		if sessionErr != nil {
 			h.log.Error("failed to create session", "error", sessionErr)
-			renderSetupError(
+			h.renderSetupError(
 				tmpl,
 				writer,
 				formData.username,