@

Add star-map Angular app, ETL pipeline, and caveman plugin

Angular 3D star map (galaxy/system/body views, Three.js rendering,
navigation store) plus the NASA ETL tooling that builds the star,
exoplanet and solar-system datasets, Playwright e2e suite, and the
cs:caveman Claude Code plugin (command, agent, skill).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
@

e2e/support/wait-for-back-button.ts

@@ -0,0 +1,27 @@
+import { expect, Locator, Page } from '@playwright/test';
+
+/**
+ * The "Galaxy" back button is only rendered while `NavigationStore.viewLevel() === 'system'`,
+ * which becomes true only once a full galaxy-to-system camera-flight transition has settled.
+ * Bootstrap (data fetch + raycaster wiring) finishes asynchronously after `page.goto()`, so
+ * this repeatedly clicks the canvas (re-checking first, so it never clicks a system-view body
+ * marker by accident once the transition has already completed) until the button appears.
+ */
+export function backButtonLocator(page: Page): Locator {
+  return page.getByRole('button', { name: 'Galaxy' });
+}
+
+export async function clickCanvasUntilSystemEntered(page: Page, canvas: Locator, backButton: Locator): Promise<void> {
+  await expect
+    .poll(
+      async () => {
+        if (await backButton.isVisible()) {
+          return true;
+        }
+        await canvas.click();
+        return false;
+      },
+      { timeout: 15_000, intervals: [300] }
+    )
+    .toBe(true);
+}