Clarify host readiness when game files or runtime are missing

src/lib/ui/components/NativeHostSelection.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
     import { onMount } from 'svelte';
     import type { Host, NativeDeploymentSelection } from '$lib/hosts.js';
+    import { hostReadinessLabel } from '$lib/hosts.js';
     import type { GameLibrary } from '$lib/game-files.js';
     import type { ZombieGame } from '$lib/map-aliases.js';
     let { games, selection = $bindable(), ready = $bindable(false), disabled = false, network = false, onchange }:
@@ -26,7 +27,7 @@
     <div class="title"><h3>Host and game files</h3><button type="button" disabled={disabled || loading} onclick={() => { onchange?.(); void load(); }}>Refresh hosts</button></div>
     {#if error}<p role="alert" class="error">{error}</p>{/if}
     {#if loading}<p role="status">Loading host readiness and libraries…</p>{/if}
-    <label>Game host<select bind:value={selection.hostId} disabled={disabled || loading} onchange={() => onchange?.()}><option value="">Choose a host</option>{#each hosts as candidate}<option value={candidate.id} disabled={candidate.readiness !== 'ready'}>{candidate.name} · {candidate.connectionState} · {candidate.readiness}</option>{/each}</select></label>
+    <label>Game host<select bind:value={selection.hostId} disabled={disabled || loading} onchange={() => onchange?.()}><option value="">Choose a host</option>{#each hosts as candidate}<option value={candidate.id} disabled={candidate.readiness !== 'ready'}>{candidate.name} · {candidate.connectionState} · {hostReadinessLabel(candidate.readiness)}</option>{/each}</select></label>
     {#if !loading && !hosts.some(candidate => candidate.readiness === 'ready')}<p>No deployment-ready hosts. <a href="/hosts" target="_blank" rel="noopener">Set up a host</a>, then refresh.</p>{/if}
     {#if host}<p>{host.hostname} · ports {host.portMin}–{host.portMax} · {host.publicAddress || host.bindAddress}</p>{/if}
     {#each games as game}<label>{game === 't5' ? 'Black Ops I' : 'Black Ops II'} game-file version<select bind:value={selection.libraryIds[game]} disabled={disabled || loading || !host} onchange={() => onchange?.()}><option value="">Choose an immutable library version</option>{#each versions.filter(version => version.game === game) as version}<option value={version.id} disabled={!cacheReady(version.id)}>{version.name} · {version.version} · {cacheReady(version.id) ? 'Ready on host' : 'Not cached on host'}</option>{/each}</select></label>{/each}