fix: verify-server.sh exit on first check, bump flower/beat to 256m

- Remove set -e so script continues through all checks
- Use POSIX arithmetic to avoid exit code 1 from (( ))
- Bump flower and celery-beat mem_limit from 128m to 256m (OOM killed)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/verify-server.sh

@@ -1,15 +1,15 @@
 #!/usr/bin/env bash
 # verify-server.sh — Check all Orion infrastructure is properly deployed
 # Run on the production server: bash scripts/verify-server.sh
-set -euo pipefail
+set -uo pipefail
 
 PASS=0
 FAIL=0
 WARN=0
 
-pass() { echo "  [PASS] $1"; ((PASS++)); }
-fail() { echo "  [FAIL] $1"; ((FAIL++)); }
-warn() { echo "  [WARN] $1"; ((WARN++)); }
+pass() { echo "  [PASS] $1"; PASS=$((PASS + 1)); }
+fail() { echo "  [FAIL] $1"; FAIL=$((FAIL + 1)); }
+warn() { echo "  [WARN] $1"; WARN=$((WARN + 1)); }
 
 section() { echo ""; echo "=== $1 ==="; }