[monitoring] job-hunter: panels 6-9 for comp_points tables + trends
Append the structured-comp dashboard surface to the job-hunter
dashboard:
Panel 6 — Per-company salary by level (p50 base, GBP table).
Panel 7 — Total-comp heatmap per (company, level), p50 GBP.
Panel 8 — Comp-point volume by source (daily time-series).
Panel 9 — Base-salary trend (p50) over time for the top 5 companies.
Adds templating: $location (multi, default london), $level (single,
default senior), $company (multi, default all) — populated from
comp_points + levels metadata so the selection reflects what was
actually ingested.
Closes: code-5ph
3f6dfb10aa