Phase 7: daily summary and read-only Hub API (AUD-73)

- internal/hub: project side of the frozen ask-contract. GET /capabilities,
  read-only POST /ask answerer (no LLM, <3s), and the outbound POST /notify
  client.
- internal/apprise: daily-summary delivery through the house Apprise API.
- internal/summary: deterministic plain-text daily summary builder.
- internal/store: CountByCategory, MessagesByCategory, and summary CRUD.
- internal/server: /capabilities and /ask (bearer-token protected), plus the
  Reports screen (/reports, build, send, delete).
- main.go: -summary, -summary-send, and -notify CLI entry points for n8n.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.env.example

@@ -49,4 +49,19 @@ EMAIL_AGENT_CLASSIFY_MAX_MESSAGES=200
 OMNIROUTE_BASE_URL=
 OMNIROUTE_API_KEY=
 OMNIROUTE_MODEL=auto/best-chat
+
+# --- Hub (Phase 7, FR-12) ---------------------------------------------------
+# HUB_TOKEN is the shared bearer token the Hub sends to /capabilities and /ask.
+# The Hub side uses HUB_PROJECT_EMAIL_AGENT_TOKEN with the same value.
 HUB_TOKEN=
+HUB_BASE_URL=http://192.168.20.13:8788
+HUB_NOTIFY_TIMEOUT=5s
+
+# --- Daily summary (Phase 7, FR-10) -----------------------------------------
+# Delivery goes through the house Apprise API on .35. Set APPRISE_KEY for a
+# stored Apprise configuration, or APPRISE_URLS for the stateless form.
+APPRISE_URL=http://192.168.20.35:8210
+APPRISE_KEY=
+APPRISE_URLS=
+APPRISE_TOKEN=
+EMAIL_AGENT_SUMMARY_TO=samuelrolfe@gmail.com