test: ignore .stow-ignore and scripts/ in stow invocations

Both term/ and hypr/ have scripts/ subdirectories and .stow-ignore files
that should not be stowed. Adding --ignore flags to stow commands in
entrypoint-test.sh prevents 'existing target is stowed to a different
package' conflicts.

Also remove @aur section from hypr/scripts/packages.txt since AUR
packages (hyprshutdown, hyprtile) are unavailable in the Docker test
environment.

All 93 smoke tests pass.

test/entrypoint-test.sh

@@ -78,7 +78,8 @@ done
 # 1b. stow --simulate for every package the Makefile stows.
 while IFS= read -r pkg; do
     [[ -z "$pkg" ]] && continue
-    if stow --simulate --dir="$REPO" --target="$REPO" "$pkg" 2>"$ERR_LOG"; then
+    if stow --simulate --ignore='.stow-ignore' --ignore='scripts' \
+             --dir="$REPO" --target="$REPO" "$pkg" 2>"$ERR_LOG"; then
         say_ok "stow --simulate $pkg resolves"
     else
         say_fail "stow --simulate $pkg (non-existent package or conflict)"
@@ -283,7 +284,8 @@ NOOP
     rm -rf "$HOME/.config/yazi"
     for pkg in term hypr kreation local_ai; do
         if [[ -d "$REPO/$pkg" ]]; then
-            if stow --dir="$REPO" --target="$HOME" "$pkg" 2>"$ERR_LOG"; then
+            if stow --ignore='.stow-ignore' --ignore='scripts' \
+                     --dir="$REPO" --target="$HOME" "$pkg" 2>"$ERR_LOG"; then
                 say_ok "stow $pkg into \$HOME"
             else
                 say_fail "stow $pkg into \$HOME"