feat(cli): surface docs and demo-warehouse links in ktx setup

Add a Clack note pointing to https://docs.kaelio.com/ktx right after the
setup intro, and a second note pointing to https://kaelio.com/start
above the database driver multiselect — mirroring the docs-site CTA
wording. Closes KLO-715 and KLO-716.

packages/cli/src/setup-databases.ts

@@ -35,6 +35,7 @@ import { isDemoConnection } from './telemetry/demo-detect.js';
 import { emitTelemetryEvent } from './telemetry/index.js';
 import {
   createKtxSetupPromptAdapter,
+  createKtxSetupUiAdapter,
   type KtxSetupPromptOption,
 } from './setup-prompts.js';
 
@@ -1780,6 +1781,11 @@ async function chooseDrivers(
     return 'missing-input';
   }
   const initialValues = unique(options?.initialDrivers ?? []);
+  createKtxSetupUiAdapter().note(
+    'Get demo credentials at https://kaelio.com/start',
+    '🎁 Need a warehouse to play with?',
+    io,
+  );
   const choices = await prompts.multiselect({
     message: withMultiselectNavigation('Which databases should KTX connect to?'),
     options: [...DRIVER_OPTIONS],

packages/cli/src/setup.ts

@@ -586,6 +586,7 @@ export async function runKtxSetup(args: KtxSetupArgs, io: KtxCliIo, deps: KtxSet
 async function runKtxSetupInner(args: KtxSetupArgs, io: KtxCliIo, deps: KtxSetupDeps = {}): Promise<number> {
   const setupUi = deps.setupUi ?? createKtxSetupUiAdapter();
   setupUi.intro('KTX setup', io);
+  setupUi.note('https://docs.kaelio.com/ktx', '📚 Docs', io);
   let entryAction: KtxSetupEntryAction | undefined;
   let projectResult: Awaited<ReturnType<typeof runKtxSetupProjectStep>>;
   let agentNextActions: string | undefined;