[codex] Harden execution reliability and heartbeat tooling (#3679)

## Thinking Path

> - Paperclip orchestrates AI agents for zero-human companies
> - Reliable execution depends on heartbeat routing, issue lifecycle
semantics, telemetry, and a fast enough local verification loop to keep
regressions visible
> - The remaining commits on this branch were mostly server/runtime
correctness fixes plus test and documentation follow-ups in that area
> - Those changes are logically separate from the UI-focused
issue-detail and workspace/navigation branches even when they touch
overlapping issue APIs
> - This pull request groups the execution reliability, heartbeat,
telemetry, and tooling changes into one standalone branch
> - The benefit is a focused review of the control-plane correctness
work, including the follow-up fix that restored the implicit
comment-reopen helpers after branch splitting

## What Changed

- Hardened issue/heartbeat execution behavior, including self-review
stage skipping, deferred mention wakes during active execution, stranded
execution recovery, active-run scoping, assignee resolution, and
blocked-to-todo wake resumption
- Reduced noisy polling/logging overhead by trimming issue run payloads,
compacting persisted run logs, silencing high-volume request logs, and
capping heartbeat-run queries in dashboard/inbox surfaces
- Expanded telemetry and status semantics with adapter/model fields on
task completion plus clearer status guidance in docs/onboarding material
- Updated test infrastructure and verification defaults with faster
route-test module isolation, cheaper default `pnpm test`, e2e isolation
from local state, and repo verification follow-ups
- Included docs/release housekeeping from the branch and added a small
follow-up commit restoring the implicit comment-reopen helpers that were
dropped during branch reconstruction

## Verification

- `pnpm vitest run
server/src/__tests__/issue-comment-reopen-routes.test.ts
server/src/__tests__/issue-telemetry-routes.test.ts`
- `pnpm vitest run server/src/__tests__/http-log-policy.test.ts
server/src/__tests__/heartbeat-run-log.test.ts
server/src/__tests__/health.test.ts`
- `server/src/__tests__/activity-service.test.ts`,
`server/src/__tests__/heartbeat-comment-wake-batching.test.ts`, and
`server/src/__tests__/heartbeat-process-recovery.test.ts` were attempted
on this host but the embedded Postgres harness reported
init-script/data-dir problems and skipped or failed to start, so they
are noted as environment-limited

## Risks

- Medium: this branch changes core issue/heartbeat routing and
reopen/wakeup behavior, so regressions would affect agent execution flow
rather than isolated UI polish
- Because it also updates verification infrastructure, reviewers should
pay attention to whether the new tests are asserting the right failure
modes and not just reshaping harness behavior

## Model Used

- OpenAI Codex coding agent (GPT-5-class runtime in Codex CLI; exact
deployed model ID is not exposed in this environment), reasoning
enabled, tool use and local code execution enabled

## 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)
- [ ] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [ ] 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/telemetry/events.ts

@@ -50,9 +50,12 @@ export function trackGoalCreated(
 
 export function trackAgentCreated(
   client: TelemetryClient,
-  dims: { agentRole: string },
+  dims: { agentRole: string; agentId?: string },
 ): void {
-  client.track("agent.created", { agent_role: dims.agentRole });
+  client.track("agent.created", {
+    agent_role: dims.agentRole,
+    ...(dims.agentId ? { agent_id: dims.agentId } : {}),
+  });
 }
 
 export function trackSkillImported(
@@ -67,16 +70,24 @@ export function trackSkillImported(
 
 export function trackAgentFirstHeartbeat(
   client: TelemetryClient,
-  dims: { agentRole: string },
+  dims: { agentRole: string; agentId?: string },
 ): void {
-  client.track("agent.first_heartbeat", { agent_role: dims.agentRole });
+  client.track("agent.first_heartbeat", {
+    agent_role: dims.agentRole,
+    ...(dims.agentId ? { agent_id: dims.agentId } : {}),
+  });
 }
 
 export function trackAgentTaskCompleted(
   client: TelemetryClient,
-  dims: { agentRole: string },
+  dims: { agentRole: string; agentId?: string; adapterType?: string; model?: string },
 ): void {
-  client.track("agent.task_completed", { agent_role: dims.agentRole });
+  client.track("agent.task_completed", {
+    agent_role: dims.agentRole,
+    ...(dims.agentId ? { agent_id: dims.agentId } : {}),
+    ...(dims.adapterType ? { adapter_type: dims.adapterType } : {}),
+    ...(dims.model ? { model: dims.model } : {}),
+  });
 }
 
 export function trackErrorHandlerCrash(

packages/shared/src/validators/issue.ts

@@ -146,6 +146,7 @@ export const createIssueLabelSchema = z.object({
 export type CreateIssueLabel = z.infer<typeof createIssueLabelSchema>;
 
 export const updateIssueSchema = createIssueSchema.partial().extend({
+  assigneeAgentId: z.string().trim().min(1).optional().nullable(),
   comment: z.string().min(1).optional(),
   reopen: z.boolean().optional(),
   interrupt: z.boolean().optional(),