Restore strict migration ordering

bin/omarchy-migrate

@@ -85,40 +85,18 @@ wait_for_pacman_transaction
 mkdir -p "$STATE_DIR"
 [[ -d $MIGRATIONS_DIR ]] || exit 0
 
-deferred=()
-while IFS=$'\t' read -r name file marker; do
+while IFS=$'\t' read -r name file marker <&3; do
   [[ -n $name ]] || continue
 
   if [[ ! -f $marker ]]; then
     echo -e "\e[32m\nRunning migration (${name%.sh})\e[0m"
-    defer_file=$(mktemp "$STATE_DIR/.defer.XXXXXX")
-    defer_token="$BASHPID-$RANDOM-$RANDOM"
-    migration_status=0
-
-    if OMARCHY_PATH="$OMARCHY_PATH" \
-      OMARCHY_MIGRATION_DEFER_FILE="$defer_file" \
-      OMARCHY_MIGRATION_DEFER_TOKEN="$defer_token" \
-      bash -euo pipefail "$file"; then
-      mkdir -p "$(dirname "$marker")"
-      touch "$marker"
-    else
-      migration_status=$?
-      if (( migration_status == 75 )) && [[ $(<"$defer_file") == "$defer_token" ]]; then
-        deferred+=("$name")
-        echo "Migration ${name%.sh} was deferred and will be retried later."
-      else
-        rm -f "$defer_file"
-        exit "$migration_status"
-      fi
-    fi
-
-    rm -f "$defer_file"
+    OMARCHY_PATH="$OMARCHY_PATH" bash -euo pipefail "$file" 3<&-
+    mkdir -p "$(dirname "$marker")"
+    touch "$marker"
   fi
-done < <(migration_entries)
+done 3< <(migration_entries)
 
 # Clear a login-time notification the user left sitting there and then resolved
 # by running migrations some other way. The substring matches both the current
 # and legacy notification titles.
-if ((${#deferred[@]} == 0)); then
-  omarchy-notification-dismiss "Omarchy Migrations" >/dev/null 2>&1 || true
-fi
+omarchy-notification-dismiss "Omarchy Migrations" >/dev/null 2>&1 || true