fix(client): address conversation assembly review findings

packages/client/runtime/src/client/sessions/conversation-assembler.ts

@@ -238,7 +238,7 @@ export class ConversationNodeAssembler {
     }
     this.applyPendingMatches(pending, affected)
     this.replayContexts(affected)
-    if ((fresh.length > 0 || previousHasMore !== hasMore) && this.replayDependencies()) {
+    if ((this.revised.size > 0 || previousHasMore !== hasMore) && this.replayDependencies()) {
       publication = 'immediate'
     }
     if (changedLocations.size > 0) publication = 'immediate'
@@ -563,18 +563,18 @@ export class ConversationNodeAssembler {
 
   private replayRevisedDependents(): boolean {
     const pending = [...this.revised]
-    const replayed = new Set<InternalContext>()
+    const affected = new Set<InternalContext>()
     for (let index = 0; index < pending.length; index++) {
       const dependency = pending[index]
       if (dependency === undefined) continue
       for (const dependent of this.dependents.get(dependency.key) ?? []) {
-        if (replayed.has(dependent)) continue
-        replayed.add(dependent)
-        this.replayContext(dependent)
+        if (affected.has(dependent)) continue
+        affected.add(dependent)
         pending.push(dependent)
       }
     }
-    return replayed.size > 0
+    this.replayContexts(affected)
+    return affected.size > 0
   }
 
   private readerFor(

packages/client/runtime/src/client/sessions/session.ts

@@ -344,6 +344,7 @@ export class Session implements SessionFace {
         // §D.2 continuity assertion: on violation drop the page fail-soft rather than render an out-of-order stream.
         console.error(`[web-runtime] history page discontinuous: tail seq ${tail?.event.seq} vs baseSeq ${this.baseSeq}`)
         this.hasMore = false
+        this.conversation.prepend([], false)
         return
       }
       this.events = [...older.map(e => e.event), ...this.events]