feat: return completed handoffs to Agent Chat (#14408)

Return completed Agent Chat handoffs through a durable outbox and scope each generated update to its supplied tasks. Add recovery, browser delivery, result access, and calibrated quality coverage.

Validated with two consecutive ten-case Claude/Codex campaigns, all CI checks, and a 5/5 review.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

server/src/services/native-runtime/native-continuation.ts

@@ -44,7 +44,7 @@ export function buildNativeContinuationPrompt(input: {
     });
   // Other provider, attachment, question, approval, and recovery paths keep
   // their specialized framing. A matching prior run still gates every delta.
-  if ((wake.externalChatProvider && !externalChat) ||
+  if (rawWake.chatCompletionUpdates || (wake.externalChatProvider && !externalChat) ||
     (!['issue_commented', 'issue_children_completed'].includes(wake.reason ?? '') &&
       !(externalChat && wake.reason === "External chat message received")) ||
     wake.fallbackFetchNeeded || wake.truncated || wake.recovery || continuation?.interruptedRunId ||

server/src/services/native-runtime/native-run-finalizer.ts

@@ -969,7 +969,7 @@ export async function repairCommittedNativeChatResponse(
         input.issueId,
         resolved.text,
         { agentId: run.agentId, runId: run.id },
-        { authorizationReason: CHAT_RUN_PRESENTATION_AUTHORIZATION_REASON },
+        { authorizationReason: CHAT_RUN_PRESENTATION_AUTHORIZATION_REASON, completionReply: true },
         tx,
       );
       const presentationDecision = {

server/src/services/native-runtime/status-decision-committer.ts

@@ -1944,6 +1944,7 @@ export async function commitNativeStatusDecision(input: {
                 completedChildIssueId: input.issueId,
                 childIssueIds: parent.childIssueIds,
                 childIssueSummaries: parent.childIssueSummaries,
+                onboardingCompletion: parent.onboardingCompletion,
                 childIssueSummaryTruncated: parent.childIssueSummaryTruncated,
               }
             : null;
@@ -1988,12 +1989,14 @@ export async function commitNativeStatusDecision(input: {
             completedChildIssueId: input.issueId,
             childIssueIds: parent.childIssueIds,
             childIssueSummaries: parent.childIssueSummaries,
+            onboardingCompletion: parent.onboardingCompletion,
             childIssueSummaryTruncated: parent.childIssueSummaryTruncated,
           },
           contextSnapshot: {
             completedChildIssueId: input.issueId,
             childIssueIds: parent.childIssueIds,
             childIssueSummaries: parent.childIssueSummaries,
+            onboardingCompletion: parent.onboardingCompletion,
             childIssueSummaryTruncated: parent.childIssueSummaryTruncated,
           },
         });
@@ -2005,6 +2008,7 @@ export async function commitNativeStatusDecision(input: {
             parentIssueId: parent.id,
             completedChildIssueId: input.issueId,
             childIssueSummaries: parent.childIssueSummaries,
+            onboardingCompletion: parent.onboardingCompletion,
             childIssueSummaryTruncated: parent.childIssueSummaryTruncated,
           },
         });