chore(api): temporary boot-time data diagnostics in the container log

Prints aggregate counts only, prefixed [DIAG], right after migrations: customers
by kind/active/archived/step, what the omde list can show and how many rows are
sales-expert trading accounts (created vs adopted), experts' profile/trading
state, referral counts, the Admin table and the last applied migrations.

Read-only, no mobile/name/id is printed, each query isolated so a failure is
reported without stopping boot. Disable with DIAG_LOG=false; remove once the
empty-omde-list investigation is closed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/api/src/prisma/bootstrap.ts

@@ -4,6 +4,7 @@ import { join } from 'path';
 import { promisify } from 'util';
 import { Logger } from '@nestjs/common';
 import { PrismaClient } from '@prisma/client';
+import { logDataDiagnostics } from './diagnostics';
 import { runMigrations, runOnce } from './migrate';
 
 const execFileAsync = promisify(execFile);
@@ -40,6 +41,9 @@ export async function prepareDatabase(): Promise<void> {
       logger.log('No pending migrations');
     }
 
+    // TEMPORARY — see diagnostics.ts. Never throws.
+    await logDataDiagnostics(prisma);
+
     if (process.env.RUN_SEED === 'false') return;
 
     const seedScript = resolveSeedScript();