build(worktree): rebuild plugin artifacts for worktree adoption feature

Regenerated worker-service.cjs, context-generator.cjs, viewer.html, and
viewer-bundle.js to reflect all six implementation phases of the merged-
worktree adoption feature.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

plugin/ui/viewer.html

@@ -1130,6 +1130,19 @@
       color: var(--color-text-muted);
     }
 
+    /* Merged-into-parent provenance badge */
+    .card-merged-badge {
+      padding: 1px 6px;
+      border-radius: 3px;
+      font-size: 9px;
+      font-weight: 500;
+      letter-spacing: 0.02em;
+      color: var(--color-text-muted);
+      background: var(--color-type-badge-bg);
+      border: 1px solid var(--color-border);
+      opacity: 0.85;
+    }
+
     .summary-card {
       border-color: var(--color-border-summary);
       background: var(--color-bg-summary);