Initial open-source release

Claude-Session: https://claude.ai/code/session_01B65qLEKnkeYTGdbwhLpjCu

src/features/run/StackTrace.module.css

@@ -0,0 +1,28 @@
+.form {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  padding: 14px;
+}
+.label {
+  color: var(--fg-secondary);
+  font-size: var(--fs-small);
+}
+.text {
+  width: 100%;
+  height: 320px;
+  resize: vertical;
+  padding: 6px 8px;
+  border: 1px solid var(--border-strong);
+  border-radius: var(--radius-control);
+  background: var(--bg-input);
+  color: var(--fg-editor);
+  font-family: var(--font-mono);
+  font-size: var(--fs-small);
+  line-height: 1.5;
+  white-space: pre;
+}
+.text:focus {
+  outline: none;
+  border-color: var(--accent);
+}