EPICS PV Viewer v1.0 A FastAPI + React web application for browsing, monitoring, and writing EPICS PVs. PV Discovery & Enrichment - Discovers live PVs via pvlist (CA name server), falling back to .db file parsing - Enriches PVs with record type and description via CA (pyepics) and PVA (pvapy) in parallel, with CA → PVA fallback - Real-time PV monitoring via WebSocket with CA and PVA subscriptions PV Viewer - Hierarchical tree view with multi-select (Ctrl/Cmd+click), expand/collapse, and filter - Details panel with live value display and record fields inspection - Writable PVs: numeric/string inputs, MBBO/mbboDirect dropdowns, boolean toggles, bit-field editor - Multi-PV side-by-side comparison panel Summary Table - Flat paginated table of all PVs with sorting, filtering, and CSV export