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>

packages/shared/src/index.ts

@@ -20,6 +20,10 @@ export {
   INBOX_MINE_ISSUE_STATUS_FILTER,
   ISSUE_PRIORITIES,
   MAX_ISSUE_REQUEST_DEPTH,
+  ISSUE_COMMENT_AUTHOR_TYPES,
+  ISSUE_COMMENT_METADATA_ROW_TYPES,
+  ISSUE_COMMENT_PRESENTATION_KINDS,
+  ISSUE_COMMENT_PRESENTATION_TONES,
   clampIssueRequestDepth,
   ISSUE_THREAD_INTERACTION_KINDS,
   ISSUE_THREAD_INTERACTION_STATUSES,
@@ -130,6 +134,10 @@ export {
   type AgentIconName,
   type IssueStatus,
   type IssuePriority,
+  type IssueCommentAuthorType,
+  type IssueCommentMetadataRowType,
+  type IssueCommentPresentationKind,
+  type IssueCommentPresentationTone,
   type IssueThreadInteractionKind,
   type IssueThreadInteractionStatus,
   type IssueThreadInteractionContinuationPolicy,
@@ -352,6 +360,8 @@ export type {
   IssueBlockerAttentionState,
   IssueProductivityReview,
   IssueProductivityReviewTrigger,
+  SuccessfulRunHandoffState,
+  SuccessfulRunHandoffStateKind,
   IssueReferenceSource,
   IssueRelatedWorkItem,
   IssueRelatedWorkSummary,
@@ -366,6 +376,16 @@ export type {
   IssueExecutionStagePrincipal,
   IssueExecutionDecision,
   IssueComment,
+  IssueCommentMetadata,
+  IssueCommentMetadataSection,
+  IssueCommentMetadataRow,
+  IssueCommentMetadataTextRow,
+  IssueCommentMetadataCodeRow,
+  IssueCommentMetadataKeyValueRow,
+  IssueCommentMetadataIssueLinkRow,
+  IssueCommentMetadataAgentLinkRow,
+  IssueCommentMetadataRunLinkRow,
+  IssueCommentPresentation,
   IssueThreadInteractionActorFields,
   SuggestedTaskDraft,
   SuggestTasksPayload,
@@ -475,6 +495,7 @@ export type {
   CompanyPortabilityProjectWorkspaceManifestEntry,
   CompanyPortabilityIssueRoutineTriggerManifestEntry,
   CompanyPortabilityIssueRoutineManifestEntry,
+  CompanyPortabilityIssueCommentManifestEntry,
   CompanyPortabilityIssueManifestEntry,
   CompanyPortabilityManifest,
   CompanyPortabilityExportResult,
@@ -685,6 +706,11 @@ export {
   issueReviewRequestSchema,
   issueExecutionWorkspaceSettingsSchema,
   checkoutIssueSchema,
+  issueCommentAuthorTypeSchema,
+  issueCommentPresentationSchema,
+  issueCommentMetadataRowSchema,
+  issueCommentMetadataSectionSchema,
+  issueCommentMetadataSchema,
   addIssueCommentSchema,
   issueThreadInteractionStatusSchema,
   issueThreadInteractionKindSchema,