test(mode): red for #22 — modeQuestions, ClassifyMode guardrail wrapper, record fields

EVENTS.md

@@ -58,6 +58,9 @@ Every nest event carries `nest_id`, `ts` (RFC 3339) and one message record. The
 | `to` | string | The @-addressed member, or `""`. `deliver`/`claim` default to the requester they answer. |
 | `refers_to` | string | The `msg_id` this responds to (claim/deliver/nudge point at their request/expectation), or `""`. |
 | `tagged_by` | string | How `kind` was decided: `"jev"`, `"header"`, `"disagreement"` (Jev overrode the crow's header) or `"default"` (nothing fit, became `say`). |
+| `mode` | string | On a `request` only: how it should be taken up — `solo`, `conspiracy` (several crows, one task, distinct readings), `split`, or `""` (not yet classified). Tagged Jev-first with a `mode` header escape (`jev_test.go`, `Flock.ClassifyMode`), same rule shape as `kind`. |
+| `mode_tagged_by` | string | How `mode` was decided, same four sources as `tagged_by`. |
+| `invited` | int | Conspiracy only: how many crows the request expects to take it up (default from the `MurderSize` cap). |
 
 ### SSE event