Kevin/integration test fixes (#69)

* fix: debug why goenv is not uninstalled

* fix: go verify uninstallation to be less strict because of github actions limitations

Author: kevinwang5658

.github/daily-integration-test/verify-destroyed.sh

@@ -1,14 +1,40 @@
 #!/bin/bash
-set -euo pipefail
+set -uo pipefail
+
+fail=0
 
 if [ -d "$HOME/.nvm" ]; then
   echo "FAIL: ~/.nvm still exists after destroy" >&2
-  exit 1
+  ls -la "$HOME/.nvm" >&2
+  fail=1
 fi
 
-if [ -d "$HOME/.goenv" ] || command -v goenv >/dev/null 2>&1; then
-  echo "FAIL: goenv still present after destroy" >&2
-  exit 1
+# Check for goenv itself, not for $GOENV_ROOT as a whole. On the macOS runner the Go module
+# cache lives at $GOENV_ROOT/shared/go-mod and is repopulated by Go tooling after the destroy,
+# so the bare directory existing says nothing about whether goenv is still installed.
+for leftover in "$HOME/.goenv/bin" "$HOME/.goenv/shims" "$HOME/.goenv/versions"; do
+  if [ -d "$leftover" ]; then
+    echo "FAIL: $leftover still exists after destroy" >&2
+    ls -la "$leftover" >&2
+    fail=1
+  fi
+done
+
+if command -v goenv >/dev/null 2>&1; then
+  echo "FAIL: 'goenv' is still resolvable after destroy" >&2
+  echo "  command -v goenv -> $(command -v goenv)" >&2
+  echo "  type goenv       -> $(type goenv 2>&1 | head -3)" >&2
+  IFS=: read -ra _dirs <<< "$PATH"
+  for _d in "${_dirs[@]}"; do
+    [ -e "$_d/goenv" ] && echo "  on PATH: $_d/goenv" >&2
+  done
+  if command -v brew >/dev/null 2>&1; then
+    brew list --formula 2>/dev/null | grep -x goenv >/dev/null \
+      && echo "  brew still lists the goenv formula" >&2
+  fi
+  fail=1
 fi
 
+[ "$fail" -ne 0 ] && exit 1
+
 echo "nvm and goenv confirmed removed."