Add production log access instructions to AGENTS.md

Document how to use Nomad CLI to view production logs for debugging.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

AGENTS.md

@@ -24,6 +24,26 @@ Run these after implementing to get immediate feedback:
 - Path aliases: `@/*` maps to `./src/*`
 - Pre-commit hooks: Biome lint + Vitest tests via Lefthook
 
+## Production Logs
+
+Access production logs via Nomad CLI:
+
+```bash
+# Check job status and get current allocation ID
+nomad job status phaseflow
+
+# View app logs (replace ALLOC_ID with current allocation)
+nomad alloc logs ALLOC_ID app
+
+# Tail recent logs
+nomad alloc logs ALLOC_ID app | tail -100
+
+# Filter for specific log patterns
+nomad alloc logs ALLOC_ID app | grep -E "pattern"
+```
+
+The allocation has two tasks: `app` (Next.js) and `pocketbase` (database).
+
 ## Database Setup
 
 PocketBase requires these collections: `users`, `period_logs`, `dailyLogs`.