fix: catch unknown error type in TUI component error handlers

CloneRepo, Install, and FileCleanup all assumed .catch received an
Error instance. If a non-Error value is rejected, error.message would
be undefined. Now catches unknown and derives a safe message string.

Author: fernandomg

source/components/steps/CloneRepo/CloneRepo.tsx

@@ -18,9 +18,9 @@ const CloneRepo: FC<Props> = ({ projectName, onCompletion }) => {
         setStatus('done')
         onCompletion()
       })
-      .catch((error: Error) => {
+      .catch((error: unknown) => {
         setStatus('error')
-        setErrorMessage(error.message)
+        setErrorMessage(error instanceof Error ? error.message : String(error))
       })
   }, [projectName, onCompletion])
 

source/components/steps/FileCleanup.tsx

@@ -29,9 +29,9 @@ const FileCleanup: FC<Props> = ({ onCompletion, installationConfig, projectName
         setStatus('done')
         onCompletion()
       })
-      .catch((error: Error) => {
+      .catch((error: unknown) => {
         setStatus('error')
-        setErrorMessage(error.message)
+        setErrorMessage(error instanceof Error ? error.message : String(error))
       })
   }, [projectFolder, installationType, selectedFeatures, onCompletion])
 

source/components/steps/Install/Install.tsx

@@ -39,9 +39,9 @@ const Install: FC<Props> = ({ projectName, onCompletion, installationConfig }) =
         setStatus('done')
         onCompletion()
       })
-      .catch((error: Error) => {
+      .catch((error: unknown) => {
         setStatus('error')
-        setErrorMessage(error.message)
+        setErrorMessage(error instanceof Error ? error.message : String(error))
       })
   }, [projectFolder, installationType, selectedFeatures, onCompletion])