feat: export the globe panel for MCP servers

MCP servers that compose Core's tools can now serve the globe panel:
@gods-eye-view/core/tools/panel exports createGlobePanelResource,
panelRuntime, GLOBE_PANEL_URI and PANEL_BASE. The local MCP server uses
the same entry point.

src/tools/globePanel.test.mjs

@@ -122,3 +122,14 @@ test('a view that only follows an aircraft is framed where the aircraft is', asy
       /not reported now/.test(error.message),
   );
 });
+
+test('the package exports the panel resource and its runtime together', async () => {
+  const panel = await import('gods-eye-view/tools/panel');
+  const resource = panel.createGlobePanelResource({
+    runtime: panel.panelRuntime,
+    panelKey: 'key',
+  });
+  assert.equal(resource.uri, panel.GLOBE_PANEL_URI);
+  assert.equal(panel.PANEL_BASE, '/panel/');
+  assert.match(resource.text, /panelRuntime|function/);
+});

src/tools/panel.js

@@ -0,0 +1,12 @@
+/**
+ * The MCP Apps globe panel for MCP servers that compose Core's tools: the
+ * panel resource and the script its page runs. A server serves the panel
+ * build at PANEL_BASE and passes the same key to the resource and to the
+ * tool services (see src/tools/services.js).
+ */
+export {
+  GLOBE_PANEL_URI,
+  PANEL_BASE,
+  createGlobePanelResource,
+} from './globePanel.js';
+export { panelRuntime } from '../app/globePanelRuntime.js';