telemetry: track interactive session state (#12856)

Co-authored-by: owenofbrien <86964623+owenofbrien@users.noreply.github.com>

packages/core/src/tools/edit.test.ts

@@ -110,6 +110,7 @@ describe('EditTool', () => {
       getGeminiMdFileCount: () => 0,
       setGeminiMdFileCount: vi.fn(),
       getToolRegistry: () => ({}) as any, // Minimal mock for ToolRegistry
+      isInteractive: () => false,
     } as unknown as Config;
 
     // Reset mocks before each test