fix: improve h5 payment return flow

scripts/git-hooks/post-checkout

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+# Third argument is 1 for branch checkout and 0 for file checkout.
+[ "${3:-0}" = "1" ] || exit 0
+
+repo_root=$(git rev-parse --show-toplevel 2>/dev/null) || exit 0
+git_dir=$(git rev-parse --git-dir 2>/dev/null) || exit 0
+case "$git_dir" in
+  /*) ;;
+  *) git_dir="$repo_root/$git_dir" ;;
+esac
+
+(
+  cd "$repo_root" || exit 0
+  ./scripts/gitnexus-refresh.sh
+) >>"$git_dir/gitnexus-refresh.log" 2>&1 &
+
+exit 0

scripts/git-hooks/post-commit

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+repo_root=$(git rev-parse --show-toplevel 2>/dev/null) || exit 0
+git_dir=$(git rev-parse --git-dir 2>/dev/null) || exit 0
+case "$git_dir" in
+  /*) ;;
+  *) git_dir="$repo_root/$git_dir" ;;
+esac
+
+(
+  cd "$repo_root" || exit 0
+  ./scripts/gitnexus-refresh.sh
+) >>"$git_dir/gitnexus-refresh.log" 2>&1 &
+
+exit 0

scripts/git-hooks/post-merge

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+repo_root=$(git rev-parse --show-toplevel 2>/dev/null) || exit 0
+git_dir=$(git rev-parse --git-dir 2>/dev/null) || exit 0
+case "$git_dir" in
+  /*) ;;
+  *) git_dir="$repo_root/$git_dir" ;;
+esac
+
+(
+  cd "$repo_root" || exit 0
+  ./scripts/gitnexus-refresh.sh
+) >>"$git_dir/gitnexus-refresh.log" 2>&1 &
+
+exit 0

scripts/git-hooks/post-rewrite

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+repo_root=$(git rev-parse --show-toplevel 2>/dev/null) || exit 0
+git_dir=$(git rev-parse --git-dir 2>/dev/null) || exit 0
+case "$git_dir" in
+  /*) ;;
+  *) git_dir="$repo_root/$git_dir" ;;
+esac
+
+(
+  cd "$repo_root" || exit 0
+  ./scripts/gitnexus-refresh.sh
+) >>"$git_dir/gitnexus-refresh.log" 2>&1 &
+
+exit 0

scripts/gitnexus-refresh.sh

@@ -0,0 +1,54 @@
+#!/bin/sh
+set -eu
+
+if [ "${GITNEXUS_AUTO_REFRESH:-1}" = "0" ]; then
+  echo "GitNexus auto refresh disabled by GITNEXUS_AUTO_REFRESH=0"
+  exit 0
+fi
+
+repo_root=$(git rev-parse --show-toplevel 2>/dev/null) || {
+  echo "Not inside a git repository"
+  exit 1
+}
+cd "$repo_root"
+
+git_dir=$(git rev-parse --git-dir)
+case "$git_dir" in
+  /*) ;;
+  *) git_dir="$repo_root/$git_dir" ;;
+esac
+
+head_commit=$(git rev-parse HEAD 2>/dev/null || true)
+if [ -z "$head_commit" ]; then
+  echo "No HEAD commit found; skip GitNexus refresh"
+  exit 0
+fi
+
+stamp_file="$git_dir/gitnexus-indexed-head"
+lock_dir="$git_dir/gitnexus-refresh.lock"
+
+if [ -f "$stamp_file" ] && [ "$(cat "$stamp_file" 2>/dev/null || true)" = "$head_commit" ]; then
+  echo "GitNexus index already refreshed for $head_commit"
+  exit 0
+fi
+
+if ! mkdir "$lock_dir" 2>/dev/null; then
+  echo "GitNexus refresh already running; skip"
+  exit 0
+fi
+
+cleanup() {
+  rmdir "$lock_dir" 2>/dev/null || true
+}
+trap cleanup EXIT HUP INT TERM
+
+echo "GitNexus refresh started for $head_commit"
+
+if npx gitnexus analyze --index-only --name anxinyan .; then
+  printf '%s\n' "$head_commit" > "$stamp_file"
+  echo "GitNexus refresh completed for $head_commit"
+else
+  status=$?
+  echo "GitNexus refresh failed with exit code $status"
+  exit "$status"
+fi