Save worktree changes

src/web/views/error/error.hbs

@@ -0,0 +1,23 @@
+<div class="card border-0 shadow-sm mx-auto" style="max-width: 48rem;">
+  <div class="card-body p-4 p-md-5">
+    <div class="d-flex align-items-start gap-3">
+      <div class="fs-1 text-danger">
+        <i class="bi bi-exclamation-triangle-fill"></i>
+      </div>
+      <div>
+        <p class="text-uppercase text-muted fw-semibold mb-1">{{statusCode}}</p>
+        <h1 class="h3 mb-3">{{errorTitle}}</h1>
+        <p class="mb-4">{{errorMessage}}</p>
+        {{#if detail}}
+          <pre class="small bg-body-tertiary border rounded p-3 mb-4 text-wrap">{{detail}}</pre>
+        {{/if}}
+        <div class="d-flex gap-2 flex-wrap">
+          <a class="btn btn-primary" href="{{backUrl}}">{{backLabel}}</a>
+          {{#if searchUrl}}
+            <a class="btn btn-outline-secondary" href="{{searchUrl}}">Search</a>
+          {{/if}}
+        </div>
+      </div>
+    </div>
+  </div>
+</div>