Data Flow graph now shows OpenMetadata as a governance node linked to all sources and Trino (catalog edges); node inspector exposes an 'Open in OpenMetadata' deep link and PII-columns-cataloged metric.
New DataFlowView (topology-style): nodes positioned from /api/dataflow with measured-anchor SVG edges and animated particles (active CDC + running movements). PII overlay shows shield badges + per-column detail inspector. Bottom strip triggers ETL movements and toggles the ETL agent. Wired into SideNav (Data Flow) and App routing; added types + api helpers.
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