chore: import deployable mai-bot source tree

scripts/sync_a_memorix_subtree.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+MODE="${1:-pull}"
+REMOTE_URL="${2:-https://github.com/A-Dawn/A_memorix.git}"
+BRANCH="${3:-MaiBot_branch}"
+PREFIX="src/A_memorix"
+
+case "$MODE" in
+  add)
+    git subtree add --prefix="$PREFIX" "$REMOTE_URL" "$BRANCH" --squash
+    ;;
+  pull)
+    git subtree pull --prefix="$PREFIX" "$REMOTE_URL" "$BRANCH" --squash
+    ;;
+  *)
+    echo "Usage: $0 [add|pull] [remote_url] [branch]" >&2
+    exit 2
+    ;;
+esac