Test env upgraded to Grav 2.0.7, plugins to stable, smoke-tested, git-sync
re-enabled. Documents the strict_mode Twig 3 migration gotcha (fresh-image
local build skips the schema migration that self-upgrade runs).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Np4cMQLF77i664CAQXySzU