test(deploy): Doctor must check the client-address configuration the API runs

Behind the reference proxy the API runs in trusted-proxy mode, but
compose.proxy.yaml gives those variables to `api` only. The documented
Doctor command runs as `migrate`, so it validated an empty
configuration and reported "Direct client-address mode" for an
installation that trusts its proxy. That is what the first production
installation saw.

Fails today:
- deploy.test.ts: the proxy overlay gives `migrate` no client-address
  environment;
- doctor.test.ts: the check does not say whose configuration it read;
- smoke-deploy.sh: Doctor through the proxy overlay does not report
  trusted-proxy mode (Docker).

Co-Authored-By: Claude Opus 5.5 <[email protected]>

tests/deploy.test.ts

@@ -153,6 +153,11 @@ describe("reference deployment compose files", () => {
       EKKLESIA_CLIENT_ADDRESS_MODE: "trusted-proxy",
       EKKLESIA_CLIENT_ADDRESS_TRUSTED_PROXIES: `${proxyAddress}/32`,
     });
+    // Doctor runs as `migrate`. Given anything else, it validates a configuration the API is not
+    // running, and reports "Direct" for an installation that trusts its proxy.
+    expect(proxyOverlay.services?.migrate?.environment).toEqual(
+      proxyOverlay.services?.api?.environment,
+    );
     expect(proxyOverlay.networks?.edge?.ipam?.config).toEqual([
       {
         ip_range: "${EKKLESIA_EDGE_DYNAMIC_RANGE:-10.249.250.0/25}",