feat(bookkeeping): show who committed a verifikat, and mark agent work in Granskning history (#1591)

Flows build plan prereq 3 (provenance display). Pure UI over columns that
have existed since migration 20260619120000:

- types: JournalEntry gains committed_actor_type/committed_actor_label
  (the detail/chain APIs already select('*'), the type just lacked them)
- voucher detail: new "Bokford av" row in the Details card, derived from
  actor type + credential label, with the Bot mark for non-user actors
- Granskning Historik rows get the same actor circle pending rows have
  (Bot vs ClipboardCheck) so agent-originated history reads at a glance
- run-turn: correct the staged_operation params comment (tool-use input
  is a superset of pending_operations.params, not the same values)

Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

lib/agent/chat/run-turn.ts

@@ -77,9 +77,11 @@ export type StreamEvent =
       kind: 'staged_operation'
       tool_use_id: string
       tool_name: string
-      // The tool-use input: the same values the staging tool stored as
-      // pending_operations.params. Carried so chat previews that need
-      // params (e.g. attach_document's DocumentViewButton) work live.
+      // The tool-use input: a superset of what the staging tool stored as
+      // pending_operations.params (it may also carry transport fields such
+      // as idempotency_key/dry_run). Carried so chat previews that need
+      // params (e.g. attach_document's DocumentViewButton) work live;
+      // previews read only the fields they need.
       params: Record<string, unknown>
       staged: StagedOperationResult
     }