FI-WP-0005 T01-T03: owner declaration, publication decision, egress hosts.

- Owner declaration for the profiled fi-daily-research-brief (proposed):
  inputs, single-commit briefs/** grant, fast-forward-only publication,
  quality rules, model requirements without env selection, completion
  evidence and rollback pins.
- Decision: origin publication is a typed grant on the run, not an
  executor default.
- docs/sources-egress.yaml: 17 exact host:443 entries for the sandbox,
  tested for sand-boxer format and drift against the prose allowlist.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 51320@bnt-lap001
Assistant-Session: 9d40b4c7-8e3c-42ee-b755-d658d4640d6c

activity-definitions/fi-daily-research-brief.md

@@ -65,5 +65,9 @@ action:
 5. [x] Executor: `rein-aharness fi-research-brief` + `scripts/railiance-rhythm/`
    (install on railiance01; not workstation cron)
 
+Migration (FI-WP-0005): the owner declaration for the profiled replacement is
+`fi-daily-research-brief.declaration.yaml` (status `proposed`). This definition
+stays on the compatibility route until the T08 cutover.
+
 Layers: activity-core (when/what/where) → rein-aharness (execute) → this repo.
 See `docs/recurrence-ops.md` and `activity-core/docs/recurring-automations-playbook.md`.