fix(upgrade): handle version prefix matching in success detection

When version detection returns short form (3.13) but target is full
version (3.13.11), the upgrade success check incorrectly reported
failure. Now checks if versions are prefix-related before warning.

Example: installed=3.13, target=3.13.11 - after upgrade the snapshot
may still show 3.13, but since 3.13 is a prefix of 3.13.11, we
consider the upgrade successful within that version range.

Author: CybotTM

scripts/guide.sh

@@ -318,8 +318,14 @@ process_tool() {
         prompt_pin_version "$tool" "$installed"
       elif [ "$new_installed" = "$installed" ] && [ "$new_installed" != "$latest" ]; then
         # Version didn't change and not at target
-        printf "\n    ⚠️  Upgrade did not succeed (version unchanged)\n"
-        prompt_pin_version "$tool" "$installed"
+        # BUT: if installed is a prefix of latest (e.g., 3.13 vs 3.13.11), consider it success
+        # This happens when version detection returns short form but upgrade actually worked
+        if [[ "$latest" == "$new_installed"* ]] || [[ "$new_installed" == "$latest"* ]]; then
+          : # Prefix match - upgrade likely succeeded, don't warn
+        else
+          printf "\n    ⚠️  Upgrade did not succeed (version unchanged)\n"
+          prompt_pin_version "$tool" "$installed"
+        fi
       else
         # Upgrade succeeded - remove any existing pin to avoid stale pins
         if catalog_has_tool "$tool"; then
@@ -361,8 +367,13 @@ process_tool() {
         printf "\n    ⚠️  Upgrade failed (install script error)\n"
         printf "    Auto-update is still enabled - will try again next time.\n"
       elif [ "$new_installed_a" = "$installed" ] && [ "$new_installed_a" != "$latest" ]; then
-        printf "\n    ⚠️  Upgrade did not succeed (version unchanged)\n"
-        printf "    Auto-update is still enabled - will try again next time.\n"
+        # Version didn't change - but check for prefix match (e.g., 3.13 vs 3.13.11)
+        if [[ "$latest" == "$new_installed_a"* ]] || [[ "$new_installed_a" == "$latest"* ]]; then
+          printf "    ✓ Auto-update enabled. This tool will update automatically in future.\n"
+        else
+          printf "\n    ⚠️  Upgrade did not succeed (version unchanged)\n"
+          printf "    Auto-update is still enabled - will try again next time.\n"
+        fi
       else
         printf "    ✓ Auto-update enabled. This tool will update automatically in future.\n"
         # Remove any existing pin