fix(k1): restore canonical local connection lifecycle

plugins/xgrids-k1/frontend/src/lifecycle.ts

@@ -2,6 +2,7 @@ import type { RuntimePhase, SourceMode as RuntimeSourceMode } from "@mission-cor
 
 import type {
   AcquisitionState,
+  BleDevice,
   XgridsApplicationControlPhase,
   XgridsAcquisition,
   XgridsK1State,
@@ -200,6 +201,50 @@ export function operationNeedsReconciliation(
   return operation.error?.safe_to_retry !== true;
 }
 
+export function provisioningCandidateById(
+  devices: readonly BleDevice[],
+  selectedDeviceId: string,
+): BleDevice | null {
+  if (!selectedDeviceId) return null;
+  return devices.find((device) => device.device_id === selectedDeviceId) ?? null;
+}
+
+export function canSubmitProvisioningMutation({
+  devices,
+  selectedDeviceId,
+  powerConfirmed,
+  credentialsReady,
+  isBusy,
+}: {
+  devices: readonly BleDevice[];
+  selectedDeviceId: string;
+  powerConfirmed: boolean;
+  credentialsReady: boolean;
+  isBusy: boolean;
+}): boolean {
+  const candidate = provisioningCandidateById(devices, selectedDeviceId);
+  return Boolean(
+    powerConfirmed &&
+    credentialsReady &&
+    !isBusy &&
+    candidate &&
+    candidate.connectable !== false,
+  );
+}
+
+export function isReachableConnectionLease(
+  state: XgridsK1State | null | undefined,
+  connectionMode: NonNullable<XgridsK1State["connection_mode"]>,
+): boolean {
+  const verification = state?.connection_verification;
+  return Boolean(
+    state?.k1_ip &&
+    state.connection_mode === connectionMode &&
+    verification?.lease_state === "reachable" &&
+    verification.network_reachability === "reachable",
+  );
+}
+
 function defaultUuid(): string {
   const cryptoApi = globalThis.crypto;
   if (!cryptoApi) {