- Remove local filter bar (Search/Type/Health) — use global header
context (Region/Env/Stage) as single source of filtering
- Pass global context selections to layout API — graph re-fetches and
ElkSharp re-lays out only the filtered environments
- Fix backend: skip promotion edges where source or target environment
is outside the filtered set (was causing 400 errors)
- Replace below-graph detail zone with 360px right side drawer that
doesn't scroll away from the graph
- Stats badges (regions/environments/paths) moved to overlay on graph
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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