feat: conversation lifecycle status (active/idle/closed) for tab persistence

Implement roadmap item 9: tab persistence across devices.

Wire (0.10.0):
- Add ConversationStatus type (active | idle | closed)
- Add status field to ConversationMeta

Transport-contract (0.14.0):
- Add conversation.statusChanged WS message to WsServerMessage union
- Re-export ConversationStatus

Conversation-store:
- Track status in ConversationMetaRow (default: idle)
- getConversationStatus / setConversationStatus methods
- listConversations accepts { status: ConversationStatus[] } filter
- Old meta rows without status default to idle on read

Session-orchestrator:
- conversationStatusChanged hook descriptor
- Emit on transitions: idle→active (turn start), active→idle (turn settle),
  →closed (closeConversation)
- Persist status to store as fire-and-forget side effect
- Declare hook in manifest contributes.hooks

Transport-ws:
- Subscribe to conversationStatusChanged hook
- Broadcast conversation.statusChanged WS message to all clients

Transport-http:
- GET /conversations?status=active,idle filter (parseStatusFilter pure helper)
- POST /conversations/:id/close now sets status to closed

CLI:
- dispatch list defaults to active,idle (excludes closed)
- --status <state> flag to filter by single status
- --all flag to include closed

FE handoff: frontend-conversation-lifecycle-handoff.md

1 files changed, 7 insertions, 2 deletions

diff --git a/packages/cli/src/main.ts b/packages/cli/src/main.ts
index 6df6e23..e709f21 100644
--- a/packages/cli/src/main.ts
+++ b/packages/cli/src/main.ts
@@ -22,7 +22,7 @@ import { extractLastText, formatConversationList, renderEvent } from "./render.j
 
 const USAGE = `Usage:
   dispatch models [--server <url>]
-  dispatch list [<prefix>] [--server <url>]
+  dispatch list [<prefix>] [--status <active|idle|closed>] [--all] [--server <url>]
   dispatch read <conversationId> [--server <url>]
   dispatch open <conversationId> [--server <url>]
   dispatch send <conversationId> --text "..." [--queue] [--open] [--cwd <dir>] [--effort <level>] [--server <url>]
@@ -50,9 +50,14 @@ async function main(): Promise<void> {
 			break;
 		}
 		case "list": {
+			const status = parsed.all ? undefined : (parsed.status ?? "active,idle");
 			const result = await fetchConversations(
 				{ fetchImpl: globalThis.fetch },
-				{ server: parsed.server, ...(parsed.query !== undefined && { query: parsed.query }) },
+				{
+					server: parsed.server,
+					...(parsed.query !== undefined && { query: parsed.query }),
+					...(status !== undefined && { status }),
+				},
 			);
 			const table = formatConversationList(result.conversations, Date.now());
 			if (table.length > 0) process.stdout.write(`${table}\n`);