fix(cloud-shared): preserve real db/schemas exports in mock.module calls

Three service tests used mock.module("db/schemas", ...) with only a
hand-picked subset of table refs. Because Bun's mock.module is
process-global and keyed by absolute path, the partial mock leaked into
later tests in the same test:cloud run. Downstream code that imported
apps.ts (the repository) then crashed with:

  SyntaxError: Export named 'appAnalytics' not found in module
  '.../db/schemas/index.ts'

Spread the real schemas module into each mock so every export remains
defined; only the table refs the test specifically wants to stub are
overridden. Fixes Cloud Tests CI failures in stripe-event-helpers,
mcp-proxy-helpers, and a2a-agent-card.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Shaw

packages/cloud-shared/src/lib/services/agent-gateway-router.test.ts

@@ -1,5 +1,7 @@
 import { beforeEach, describe, expect, mock, test } from "bun:test";
 
+import * as realDbSchemas from "../../db/schemas";
+
 const findByPhoneNumberWithOrganization = mock();
 const listByOrganization = mock();
 const findRunningSandbox = mock();
@@ -72,6 +74,7 @@ mock.module("../../db/repositories/agent-sandboxes", () => ({
 }));
 
 mock.module("../../db/schemas", () => ({
+  ...realDbSchemas,
   anonymousSessions: {},
   agentPhoneContacts: {
     agent_id: "contact_agent_id",

packages/cloud-shared/src/lib/services/message-router/index.test.ts

@@ -1,5 +1,7 @@
 import { beforeEach, describe, expect, mock, test } from "bun:test";
 
+import * as realDbSchemas from "../../../db/schemas";
+
 const blooioApiRequest = mock();
 const secretsGet = mock();
 const insertValues = mock();
@@ -26,6 +28,7 @@ mock.module("../../../db/client", () => ({
 }));
 
 mock.module("../../../db/schemas", () => ({
+  ...realDbSchemas,
   anonymousSessions: {},
   agentPhoneContacts: {
     provider: "provider",

packages/cloud-shared/src/lib/services/phone-gateway-devices.test.ts

@@ -1,5 +1,7 @@
 import { beforeEach, describe, expect, mock, test } from "bun:test";
 
+import * as realDbSchemas from "../../db/schemas";
+
 const values = mock();
 const onConflictDoUpdate = mock();
 const returning = mock();
@@ -26,6 +28,7 @@ mock.module("../../db/client", () => ({
 }));
 
 mock.module("../../db/schemas", () => ({
+  ...realDbSchemas,
   anonymousSessions: {},
   agentPhoneContacts: {
     provider: "provider",