WAlert

Fix CVE-2025-8869 and CVE-2026-1703: remove system pip, pin venv pip>=26.0

Upgrade to Ubuntu 26.04, reduce dedup window to 120s, build locally

Merge pull request #1 from ynixon/claude/deduplicate-alerts-VMlxc

Filter alert message to only show the configured REGION location

Fix dedup to skip alerts when the user's region was already recently alerted