v1.5.0

Added

• The admin Overview shows charts with 7, 30 or 90 days of history: agent
  calls and errors, searches, spend against the daily cap, corpus growth
  (pages, edits, facts), top tools and top agents, with a "what changed"
  comparison against the previous period.
• GET /admin/api/timeseries, GET /admin/api/graph/hubs and
  GET /admin/api/onboarding feed the charts, the Graph home view and the
  setup checklist. All three are admin-only aggregates and make no model calls.
• Every admin page opens with a short explanation, every metric has a ?
  help button, and a Glossary page explains pages, facts, entities, chunks,
  links and the other terms the panel uses.
• A Setup guide and a first-run checklist walk a new admin through connecting
  an AI agent (the instance's MCP URL plus Claude Desktop, Claude Code and
  ChatGPT instructions), writing a first page and running a first search; each
  step is ticked from real activity.
• The Graph page opens on the most connected pages instead of an empty slug
  box, and explains what a link is.

Changed

• Traffic, error-rate and per-credential usage counts leave out tools/list
  handshakes and webhook deliveries, so they agree with the new charts.