feat(documents): surface filesystem work-products in Document Center

The Document Center only read the `documents` table, which is prose
content POSTed via /api/documents. Everything the agents wrote via
`bash` / `write` / `edit` — the bulk of their output on a real
project — landed in `work_products` and never appeared on the page.
Operators saw "0 items" after a full night's run.

Lift work_products into the same UI:

  - `listWorkProductsForCompany` returns a newest-first slice with a
    500-row cap so the snapshot stays bounded.
  - `ProfileSnapshot.workProducts` flows through `useCompanyData` as
    `companyWorkProducts`, filtered to the current company.
  - `DocumentCenter` renders two labelled sections in order — prose
    documents (editable) on top, files & deliverables below. Each
    work-product row opens the underlying URL or filesystem path
    when clickable, so the agent's bash-generated markdown, PRs,
    and artifacts are one click away.

`WorkProductRecord` lifts into `@shared/types/records-extended` so
the renderer, snapshot, and database shells all reference the same
shape. The store-test fixture learns about the new field.

src/shared/types/records-extended.ts

@@ -97,6 +97,26 @@ export interface DocumentRecord {
   updatedAt: string;
 }
 
+export interface WorkProductRecord {
+  id: string;
+  companyId: string;
+  projectId: string | null;
+  taskId: string | null;
+  type: string;
+  provider: string;
+  externalId: string | null;
+  title: string;
+  url: string | null;
+  status: string;
+  reviewState: string;
+  isPrimary: boolean;
+  summary: string | null;
+  metadataJson: string | null;
+  createdByRunId: string | null;
+  createdAt: string;
+  updatedAt: string;
+}
+
 export interface KnowledgeEntryRecord {
   id: string;
   companyId: string;

src/shared/types/snapshot.ts

@@ -22,6 +22,7 @@ import type {
   AutomationRuleRecord,
   AgentMessageRecord,
   WorkflowPipelineRecord,
+  WorkProductRecord,
 } from "./records-extended";
 
 export interface ProfileSnapshot {
@@ -51,6 +52,7 @@ export interface ProfileSnapshot {
   socialAccounts: SocialAccountRecord[];
   meetings: MeetingRecord[];
   documents: DocumentRecord[];
+  workProducts: WorkProductRecord[];
   knowledgeBase: KnowledgeEntryRecord[];
   sprints: SprintRecord[];
   automationRules: AutomationRuleRecord[];
@@ -86,6 +88,7 @@ export const COMPANY_SCOPED_KEYS = [
   "socialAccounts",
   "meetings",
   "documents",
+  "workProducts",
   "knowledgeBase",
   "sprints",
   "automationRules",