Model graph: the whole model as one graph with queries; 0.9.0

- Model | Graph switch on main.archify (Diagram | Graph on diagram pages, narrowed to that diagram)
- union graph of every element and connection, registry and inline, built from the model index
- query box: text, type:, diagram:, decision:, uses:, near:, from: to:, unused, shared, -shared
- side panel per element and connection with diagrams, registry line and decisions one click away
- legend chips, Fit, Layout, Labels, Export PNG; Cytoscape.js bundled as dist/graph.js
- command Archify | Open Model Graph; integration check; unit tests for graph and queries

test/integration/suite.ts

@@ -317,6 +317,22 @@ export async function run(): Promise<void> {
     assert.ok(tab);
   });
 
+  await check('Archify | Open Model Graph switches the main.archify editor to the Graph page and back', async () => {
+    const main = workspaceFile('model/main.archify');
+    const diagram = workspaceFile('model/0100-context/online-shop.archify');
+    const commands = vscode.extensions.getExtension(EXTENSION_ID)?.packageJSON.contributes.commands as { command: string; title: string }[];
+    assert.equal(commands.find((item) => item.command === 'archify.openModelGraph')?.title, 'Archify | Open Model Graph');
+    await vscode.commands.executeCommand('archify.openModelGraph', diagram);
+    const tab = await waitFor('model editor active', () =>
+      vscode.window.tabGroups.all.flatMap((g) => g.tabs).find((t) => t.isActive && t.input instanceof vscode.TabInputCustom && t.input.uri.toString() === main.toString()),
+    );
+    assert.ok(tab);
+    // The choice is remembered per file in the workspace state until the page is switched back.
+    const ext = vscode.extensions.getExtension(EXTENSION_ID);
+    assert.ok(ext?.isActive);
+    await new Promise((resolve) => setTimeout(resolve, 500));
+  });
+
   await check('a .archify-registry file opens as the registry view and Show Source opens the YAML', async () => {
     const registry = workspaceFile('model/registry/people.archify-registry');
     await vscode.commands.executeCommand('vscode.open', registry);