feat(isolation): implement Phase 1-3 session isolation with stop purge and resume safety

.agents/skills/multi-agent-mux-resume/scripts/resolve_session_id.sh

@@ -13,18 +13,22 @@ source "$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)/lib.sh"
 
 usage() {
   cat <<EOF
-Usage: $0 --workspace <path> --agent <claude|agy>
+Usage: $0 --workspace <path> --agent <claude|agy|hermes|cline> [--session <name>]
 Outputs the resolved UUID on stdout (empty if not found).
+--session scopes resolution to that registry row — required for sessions
+created with --isolate (their conversation lives only in the row's isolation root).
 EOF
 }
 
 WORKSPACE=""
 AGENT=""
+SESSION_NAME=""
 
 while [ $# -gt 0 ]; do
   case "$1" in
     --workspace) WORKSPACE="$2"; shift 2 ;;
     --agent)     AGENT="$2";     shift 2 ;;
+    --session)   SESSION_NAME="$2"; shift 2 ;;
     -h|--help)   usage; exit 0 ;;
     *) echo "ERROR: unknown arg: $1" >&2; exit 2 ;;
   esac
@@ -37,4 +41,4 @@ case "$AGENT" in
   *) echo "ERROR: --agent must be claude or agy or hermes or cline" >&2; exit 2 ;;
 esac
 
-find_workspace_uuid "$WORKSPACE" "$AGENT"
+find_workspace_uuid "$WORKSPACE" "$AGENT" "$SESSION_NAME"