Add China app catalog and first-run wizard

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

bin/omarchy-cn-app-list

@@ -0,0 +1,15 @@
+#!/bin/bash
+# omarchy:summary=List China app catalog entries and their sources
+# omarchy:examples=omarchycn app list
+
+set -euo pipefail
+
+APPS_JSON="$OMARCHY_PATH/cn/apps.json"
+
+printf '%-14s %-10s %-8s %-12s %s\n' "ID" "NAME" "SOURCE" "LICENSE" "PACKAGE/URL"
+jq -r '.apps | to_entries[] |
+  [.key, .value.name, .value.source, .value.license, (.value.package // .value.url)] | @tsv' \
+  "$APPS_JSON" |
+  while IFS=$'\t' read -r id name source license ref; do
+    printf '%-14s %-10s %-8s %-12s %s\n' "$id" "$name" "$source" "$license" "$ref"
+  done