feat(vps): override kill/start scripts for --restart via env

FRACTURED_KILL_SCRIPT and FRACTURED_START_SCRIPT default to repo scripts/.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/vps-update-server.sh

@@ -32,6 +32,8 @@
 #   FRACTURED_GITEA_ORIGIN_URL        — URL used when auto-migrating off GitHub (default: Gitea HTTPS above)
 #   FRACTURED_SKIP_ORIGIN_MIGRATION   — set to 1 to never rewrite remote URLs
 #   FRACTURED_POST_UPDATE_CMD         — shell command run after compile (used by bare --run-after)
+#   FRACTURED_KILL_SCRIPT              — with --restart: path to kill script (default: scripts/kill-azeroth-servers.sh)
+#   FRACTURED_START_SCRIPT             — with --restart: path to start script (default: scripts/start-azeroth-servers.sh)
 
 set -euo pipefail
 
@@ -62,7 +64,7 @@ Options:
   --compile-only  ./acore.sh compiler compile (incremental).
   --prefix PATH   Override CMAKE_INSTALL_PREFIX (updates conf/config.sh BINPATH).
   --dry-run       Print commands without running them.
-  --restart       Kill servers before compile, restart in tmux after.
+  --restart       Kill servers before compile, restart after (see FRACTURED_KILL_SCRIPT / FRACTURED_START_SCRIPT).
   --run-after [CMD]  Run a custom shell command after successful compile.
                   If CMD is omitted, uses FRACTURED_POST_UPDATE_CMD.
 
@@ -71,6 +73,8 @@ Environment:
   FRACTURED_GITEA_ORIGIN_URL         Target URL when auto-migrating from GitHub Fractured remote.
   FRACTURED_SKIP_ORIGIN_MIGRATION    Set to 1 to skip GitHub → Gitea remote rewrite.
   FRACTURED_POST_UPDATE_CMD          Used with bare --run-after.
+  FRACTURED_KILL_SCRIPT              Override kill script used with --restart (default: repo scripts/).
+  FRACTURED_START_SCRIPT              Override start script used with --restart (default: repo scripts/).
 EOF
 }
 
@@ -157,12 +161,12 @@ fi
 
 cd "$ROOT"
 
-KILL_SCRIPT="${SCRIPT_DIR}/kill-azeroth-servers.sh"
-START_SCRIPT="${SCRIPT_DIR}/start-azeroth-servers.sh"
+KILL_SCRIPT="${FRACTURED_KILL_SCRIPT:-$SCRIPT_DIR/kill-azeroth-servers.sh}"
+START_SCRIPT="${FRACTURED_START_SCRIPT:-$SCRIPT_DIR/start-azeroth-servers.sh}"
 
 if [[ "$DO_RESTART" -eq 1 ]]; then
   if [[ ! -f "$KILL_SCRIPT" || ! -f "$START_SCRIPT" ]]; then
-    echo "error: --restart requires kill-azeroth-servers.sh and start-azeroth-servers.sh in scripts/" >&2
+    echo "error: --restart needs kill and start scripts (defaults under scripts/). Set FRACTURED_KILL_SCRIPT / FRACTURED_START_SCRIPT to override." >&2
     exit 1
   fi
   echo "==> stopping servers before compile"
@@ -250,7 +254,7 @@ if [[ "$DO_RUN_AFTER" -eq 1 ]]; then
 fi
 
 if [[ "$DO_RESTART" -eq 0 && "$DO_RUN_AFTER" -eq 0 ]]; then
-  echo "Done. Run 'bash scripts/start-azeroth-servers.sh' to (re)start servers in tmux."
+  echo "Done. (Re)start: bash \"$SCRIPT_DIR/start-azeroth-servers.sh\" — or set FRACTURED_START_SCRIPT for a custom path."
 else
   echo "Done."
 fi