Scope the migration's busy check to the installation being migrated

Deployment/migrate_data_layout.sh

@@ -99,10 +99,16 @@ say()  { printf '  %s\n' "$*"; }
 step() { printf '\n━━━ %s ━━━\n' "$*"; }
 
 # ── Guard: orchestrators mid-run ──────────────────────────────────────────────
+# Scoped to THIS installation's path, not to the script names. pgrep is system-wide, and a box
+# running both a production checkout and a development clone will always have one of them busy —
+# matching on "Orchestrators/" alone made a dev migration abort because prod was mid-cycle, which
+# is a process that cannot touch this tree's data at all. The full path is what distinguishes
+# them, so that is what is matched.
 if [[ "$FORCE" == false && "$DRY_RUN" == false ]]; then
-    running=$(pgrep -fa 'Orchestrators/|Watchdogs/' 2>/dev/null | grep -v "$$" | grep -v migrate_data_layout || true)
+    running=$(pgrep -fa "$ROOT/(Orchestrators|Watchdogs|Media|Rsync)/" 2>/dev/null \
+              | grep -v "$$" | grep -v migrate_data_layout || true)
     if [[ -n "$running" ]]; then
-        echo "[ABORT] Orchestrator or watchdog is running — it may rewrite state mid-move:" >&2
+        echo "[ABORT] A job from this installation is running — it may rewrite state mid-move:" >&2
         echo "$running" >&2
         echo "Wait for it to finish, or re-run with --force if you are sure." >&2
         exit 1