perf(session): separate indexed and snapshot log reads

packages/api/session-controller/src/commands.ts

@@ -484,7 +484,7 @@ export class SessionCommandController {
   private async readSessionState(sessionId: SessionId): Promise<SessionReadState> {
     const attached = this.ctx.sessions.get(sessionId)
     if (attached !== undefined) {
-      return { id: attached.id, header: attached.header, events: [...attached.events] }
+      return { id: attached.id, header: attached.header, events: [...attached.snapshotEvents()] }
     }
     const inspected = await inspectApiSession(this.ctx, sessionId)
     return { id: inspected.meta.id, header: inspected.meta, events: inspected.events }

packages/api/session-controller/src/history.ts

@@ -112,7 +112,7 @@ export class SessionHistoryController {
       // Constructor seed events have no session/event notification. Normally
       // only the end-seed suffix is new; if persistence advanced after the
       // opening observation, replay everything beyond that snapshot cursor.
-      const suffix = session.events.slice(snapshotCursor === undefined
+      const suffix = session.snapshotEvents(snapshotCursor === undefined
         ? session.firstLiveSeq
         : snapshotCursor + 1)
       buffered.unshift(...suffix)

packages/api/session-controller/src/index.ts

@@ -194,7 +194,7 @@ export class SessionController extends TypertRemoteService {
   ): Promise<{ meta: SessionHeader; events: SessionEvent[] }> {
     const attached = this.ctx.sessions.get(sessionId)
     if (attached !== undefined) {
-      return Promise.resolve({ meta: attached.header, events: [...attached.events] })
+      return Promise.resolve({ meta: attached.header, events: [...attached.snapshotEvents()] })
     }
     return inspectApiSession(this.ctx, sessionId, signal)
   }