Move panel temporary state to worker OPFS

web/worker/capabilities.mjs

@@ -34,7 +34,14 @@ export function capabilities(contextId) {
     event: 1,
     workspace: 1,
     commands: [...COMMANDS],
+    worker_storage_commands: ["UI_STATE_SAVE", "UI_STATE_LOAD", "UI_STATE_CLEAR"],
     streams: ["STATE_SNAPSHOT", "EVENT", "ALARM"],
+    storage: {
+      owner: "dedicated-worker",
+      ui_state: "opfs_temp_json_v1",
+      power_off_checkpoint: "opfs_temp_json_v1",
+      authority: "linuxcnc-wasm-remains-authoritative",
+    },
     limits: { ...LIMITS },
     exclusions: EXCLUSIONS.map((entry) => ({ ...entry })),
   };