refactor(jobs): type the producer face by the record declaration, tidy review residue

- `JobStart` is a union discriminated by `record`: `RecordingJobStart.run`
  receives `RecordingJob` (with `append`), `PlainJobStart.run` receives the
  plain `RunningJob`, and the registry builds the plain face without the
  method, so the former warn-and-drop path is unrepresentable.
- Remove the duplicated JSDoc opener in the registry seam and correct the
  job-list slot comment (order 20 sits before the subagent catalog's 30).
- Restore the `cordis-tool-round` session fixture whose only change was a
  re-recorded `createdAt`.
- Update the 2026-08-08 job-display note's stale service-disposal and slot
  ordering facts; archive the superseded 2026-08-25 unified-task-list note
  and point its remaining inbound links at the archived snapshot.

packages/shell/tool-bash/src/observe.ts

@@ -15,7 +15,7 @@
 import type { Context } from '@deepseek-ai/cordis'
 import type { ShellProcess } from '@deepseek-ai/dsh-shell'
 import { pumpJobOutput } from '@deepseek-ai/dsh-jobs'
-import type { JobPumpSource, RunningJob } from '@deepseek-ai/dsh-jobs'
+import type { JobPumpSource, RecordingJob } from '@deepseek-ai/dsh-jobs'
 
 /**
  * Pump the process's non-consuming offset readers into the job record until
@@ -31,7 +31,7 @@ import type { JobPumpSource, RunningJob } from '@deepseek-ai/dsh-jobs'
  */
 export function observeProcessRecord(
   ctx: Context,
-  job: RunningJob,
+  job: RecordingJob,
   proc: ShellProcess,
   pollMs: number,
 ): Promise<void> {