Surfaces the entry_gate_evaluated decision receipts (plan 005) that were
write-only until now: a Decision Trace panel (per-gate value->threshold
chips, symbol filter, lazy-load + SSE refresh) and collapsed reject markers
merged into the plan-013 symbol chart's existing markers primitive.
- storage/projections.py: query_gate_receipts (case-insensitive symbol
filter, newest-first, same _hist_window idiom as query_fills_feed)
- api/main.py: GET /api/decisions (clamped limit<=500, date-scoped);
DashboardState.decisions() adds a server-computed epoch per row; factored
chart()'s inline to_epoch into a shared _to_epoch_et helper
- api/static/dashboard.html: Decision Trace panel + refreshChart now also
fetches /api/decisions and merges collapsed reject markers (same-reason
bursts within 5min -> one marker) into the single setMarkers call
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
