Add recovery handoff system notices (#5289)

## Thinking Path

> - Paperclip orchestrates AI agents for zero-human companies.
> - Agent runs can end productively while the source issue still lacks a
durable final disposition.
> - That leaves the control plane unsure whether to resume, escalate, or
close the work.
> - Issue comments also need a presentation contract so system-authored
recovery notices can render as first-class thread messages without
overloading normal comments.
> - This pull request adds successful-run handoff recovery, comment
presentation metadata, and system notice rendering.
> - The benefit is stricter task liveness with clearer operator-facing
recovery state.

## What Changed

- Added successful-run handoff decisions, wake payloads, escalation
behavior, and recovery tests.
- Added issue comment presentation metadata with migration
`0078_white_darwin.sql` and shared/server/company portability support.
- Rendered recovery/system notices in issue chat with dedicated UI
components, fixtures, tests, and storybook/lab coverage.
- Included the current recovery model-profile hint patch so automatic
recovery follow-ups use the cheap profile.

## Verification

- `pnpm install --frozen-lockfile`
- `pnpm exec vitest run
server/src/services/recovery/successful-run-handoff.test.ts
ui/src/components/SystemNotice.test.tsx
ui/src/lib/system-notice-comment.test.ts
ui/src/components/IssueChatThreadSystemNotice.test.tsx`

## Risks

- Migration-bearing PR: merge this before any other branch that might
later add a migration.
- The branch touches both recovery services and issue-thread rendering,
so review should pay attention to recovery wake idempotency and comment
metadata compatibility.

## Model Used

- OpenAI GPT-5 Codex via Paperclip `codex_local` adapter, with
shell/git/GitHub CLI tool use.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>

ui/src/pages/IssueDetail.tsx

@@ -104,8 +104,14 @@ import { buildIssuePropertiesPanelKey } from "../lib/issue-properties-panel-key"
 import { shouldRenderRichSubIssuesSection } from "../lib/issue-detail-subissues";
 import { filterIssueDescendants } from "../lib/issue-tree";
 import { buildSubIssueDefaultsForViewer } from "../lib/subIssueDefaults";
+import {
+  SUCCESSFUL_RUN_HANDOFF_ESCALATED_ACTION,
+  SUCCESSFUL_RUN_HANDOFF_REQUIRED_ACTION,
+  successfulRunHandoffActivityTone,
+} from "../lib/successful-run-handoff";
 import {
   Activity as ActivityIcon,
+  AlertTriangle,
   Archive,
   ArrowLeft,
   Check,
@@ -578,6 +584,7 @@ type IssueDetailChatTabProps = {
   executionRunId: string | null;
   blockedBy: Issue["blockedBy"];
   blockerAttention: Issue["blockerAttention"] | null;
+  successfulRunHandoff: Issue["successfulRunHandoff"] | null;
   comments: IssueDetailComment[];
   locallyQueuedCommentRunIds: ReadonlyMap<string, string>;
   interactions: IssueThreadInteraction[];
@@ -635,6 +642,7 @@ const IssueDetailChatTab = memo(function IssueDetailChatTab({
   executionRunId,
   blockedBy,
   blockerAttention,
+  successfulRunHandoff,
   comments,
   locallyQueuedCommentRunIds,
   interactions,
@@ -836,6 +844,7 @@ const IssueDetailChatTab = memo(function IssueDetailChatTab({
         activeRun={resolvedActiveRun}
         blockedBy={blockedBy ?? []}
         blockerAttention={blockerAttention}
+        successfulRunHandoff={successfulRunHandoff}
         companyId={companyId}
         projectId={projectId}
         issueStatus={issueStatus}
@@ -1065,16 +1074,25 @@ function IssueDetailActivityTab({
           agentMap={agentMap}
           hasLiveRuns={hasLiveRuns}
           activityEvents={activity ?? []}
-          renderActivityEvent={(evt) => (
-            <div className="space-y-1.5 rounded-lg border border-border/60 px-3 py-2 text-xs text-muted-foreground">
-              <div className="flex items-center gap-1.5">
-                <ActorIdentity evt={evt} agentMap={agentMap} userProfileMap={userProfileMap} />
-                <span>{formatIssueActivityAction(evt.action, evt.details, { agentMap, userProfileMap, currentUserId })}</span>
-                <span className="ml-auto shrink-0">{relativeTime(evt.createdAt)}</span>
+          renderActivityEvent={(evt) => {
+            const tone = successfulRunHandoffActivityTone(evt.action);
+            const isHandoffWarning =
+              evt.action === SUCCESSFUL_RUN_HANDOFF_REQUIRED_ACTION
+              || evt.action === SUCCESSFUL_RUN_HANDOFF_ESCALATED_ACTION;
+            return (
+              <div className={cn("space-y-1.5 rounded-lg border px-3 py-2 text-xs", tone.className)}>
+                <div className="flex items-center gap-1.5">
+                  {isHandoffWarning ? (
+                    <AlertTriangle className={cn("h-3.5 w-3.5 shrink-0", tone.iconClassName)} />
+                  ) : null}
+                  <ActorIdentity evt={evt} agentMap={agentMap} userProfileMap={userProfileMap} />
+                  <span>{formatIssueActivityAction(evt.action, evt.details, { agentMap, userProfileMap, currentUserId })}</span>
+                  <span className="ml-auto shrink-0">{relativeTime(evt.createdAt)}</span>
+                </div>
+                <IssueReferenceActivitySummary event={evt} />
               </div>
-              <IssueReferenceActivitySummary event={evt} />
-            </div>
-          )}
+            );
+          }}
         />
       </div>
       {linkedApprovals && linkedApprovals.length > 0 && (
@@ -3662,6 +3680,7 @@ export function IssueDetail() {
               executionRunId={issue.executionRunId ?? null}
               blockedBy={issue.blockedBy ?? []}
               blockerAttention={issue.blockerAttention ?? null}
+              successfulRunHandoff={issue.successfulRunHandoff ?? null}
               comments={threadComments}
               locallyQueuedCommentRunIds={locallyQueuedCommentRunIds}
               interactions={interactions}