Add GitHub plugin release imports and update discovery

src/lib/ui/components/ArtifactDetail.svelte

@@ -1,6 +1,8 @@
 <script lang="ts">
     import { onMount, onDestroy } from 'svelte';
     import { artifactVersionLabel } from '$lib/artifact-version.js';
+    import PluginGithubImport from './PluginGithubImport.svelte';
+    import type { PluginSource } from '$lib/plugin-github.js';
     import { goto } from '$app/navigation';
     import Card from './primitives/Card.svelte';
     import Badge from './primitives/Badge.svelte';
@@ -30,6 +32,7 @@
     interface Version {
         id: number; version: number; sha256: string; size: number;
         release_version: string | null;
+        source: PluginSource | null;
         notes: string | null; state: 'untested' | 'tested' | 'test-failed';
         uploaded_at: string;
     }
@@ -340,7 +343,9 @@
                             <span class="v-num">{artifactVersionLabel(v)}</span>
                             <span class="v-sha">{v.sha256.slice(0, 12)}</span>
                             <span class="v-size">{v.size} B</span>
-                            <span class="v-notes">{v.notes ?? ''}</span>
+                            <span class="v-notes">{v.notes ?? ''}
+                                {#if v.source}<a href={v.source.release_url} target="_blank" rel="noreferrer">GitHub · {v.source.asset_name} ↗</a>{/if}
+                            </span>
                             <span class="v-when">{v.uploaded_at}</span>
                             {#if a.current_version_id === v.id}
                                 <Badge variant="online" size="sm">Promoted</Badge>
@@ -353,6 +358,10 @@
             {/if}
         </Card>
 
+        {#if family === 'plugin'}
+            <div id="github-releases"><PluginGithubImport pluginId={id} targetPath={a.target_rel_path} disabled={runningBetaId !== null} onimport={() => load()} /></div>
+        {/if}
+
         <Card padding="lg">
             <div class="panel-head"><h2>Danger zone</h2></div>
             <Button variant="danger" onclick={deleteArtifact}>Delete {family}</Button>
@@ -500,6 +509,8 @@
     .v-num { color: var(--text-primary); font-weight: var(--weight-semibold); overflow-wrap: anywhere; }
     .v-sha, .v-size, .v-when { color: var(--text-tertiary); font-variant-numeric: tabular-nums; }
     .v-notes { color: var(--text-secondary); font-family: var(--font-body); font-size: var(--text-sm); }
+    .v-notes { white-space: pre-wrap; overflow-wrap: anywhere; max-height: 160px; overflow-y: auto; }
+    .v-notes a { display: block; color: var(--accent-primary-hover); margin-top: var(--space-2); }
 
     .alert {
         padding: var(--space-3) var(--space-4);