deno: 22 of 24 orchestrion suites never load the real library

[isaacs]

In dev-packages/deno-integration-tests/suites/orchestrion-*, only orchestrion-mysql and orchestrion-postgres spawn a real deno run scenario. The other 22 publish the diagnostics channel by hand:

const channel = tracingChannel('orchestrion:openai:chat');
channel.start.runStores(ctx, () => undefined);
channel.end.publish(ctx);

That tests the subscriber, which is shared with Node and already covered there. It proves nothing about whether Deno's Module.registerHooks transform actually injects the channel into that package. The Deno-specific risk is exactly the part not covered.

Work item. Promote three or four suites to real scenarios: express (the most-used), redis, and one AI provider. Reuse the scenario.mjs + Deno.Command shape from orchestrion-mysql.

**Prior art **(related history only). No issue. #21827 (merged) created the deno-integration-tests package that these suites live in. #18635 (open) is the nearest umbrella.

[linear-code]

JS-3523