v0.12.3

Changed

• Consolidate page, chart and AI source timestamps in one top-right data freshness control
• Show the most recent update as a relative age; expand to inspect precise local source times, older data and missing coverage
• Group collection times from the same finished refresh by its end without modifying stored provenance or statistics windows
• Clear registered sources on navigation and repository-scope changes; retain business event dates and execution diagnostics

Operations

• Add an authenticated read-only refresh-time metadata endpoint with bounded account-scoped history
• No database migration, new binding or refresh scheduling change is required