Search archived conversations

Search across all archived conversations (assistant and agent) for the authenticated user.

Overview:

Performs a case-insensitive substring match against conversation titles and message content across both assistant (Conversation) and agent (AgentConversation) archived collections. Results are merged server-side and sorted by lastActivityAt descending.

Search parameter:

The search query parameter is required, must be a non-empty string, and is capped at 1000 characters. Requests that omit it or exceed the cap return 400.

Pagination:

Results are paginated using page and limit. The response includes a pagination block with total counts and a summary block that breaks matches down by source.

Item shape:

Each item is a conversation list entry (no messages payload — that field is omitted for performance) tagged with source, plus computed isOwner, accessLevel, archivedAt, and archivedBy. agentKey is present only when source is agent.