fix(session): address restore review feedback

packages/session-persistence/session-persistence-jsonl/src/index.ts

@@ -34,7 +34,11 @@ export type { JsonlCompression } from './format.ts'
 
 const DEFAULT_PACK_CHUNKS = true
 const DEFAULT_COMPRESSION: JsonlCompression = 'zstd'
-/** internal yield interval. */
+/**
+ * Internal scheduling constant, not deployment configuration: balance
+ * frame-boundary event-loop yields against `setImmediate` overhead. One frame
+ * remains an indivisible synchronous decode.
+ */
 const ZSTD_DECODE_YIELD_INTERVAL_MS = 500
 
 /** Assert that the independently decodable first frame contains only the header record. */

packages/session-persistence/session-persistence-jsonl/tests/jsonl.spec.ts

@@ -713,7 +713,7 @@ describe('SessionPersistenceJsonl: scanLog unit', () => {
 
     expect(result.events).toEqual([oneTurnLog()[0]])
     expect(result.committedBytes).toBe(header.length + event.length + 1)
-    expect(() =>{  scanner.write(Buffer.from('\n')) }).toThrow(/finished/)
+    expect(() => { scanner.write(Buffer.from('\n')) }).toThrow(/finished/)
   })
 
   it('keeps scanning after a tolerable corrupt suffix until a committed turn end appears', () => {
@@ -728,7 +728,7 @@ describe('SessionPersistenceJsonl: scanLog unit', () => {
     expect(scanner.finish().events).toEqual([oneTurnLog()[0]])
 
     const committed = new SessionLogScanner(header)
-    expect(() =>{  committed.write(Buffer.from([
+    expect(() => { committed.write(Buffer.from([
       JSON.stringify({ type: 'turn/end', seq: 1, time: 2, data: { turn: 1, reason: { kind: 'completed' } } }),
       '',
     ].join('\n'))) }).toThrow(/seq gap in committed region/)