Rebuild AgentCompany-New renderer to match design spec

- Port design tokens, sidebar, topbar, and icons to inline SVG set
- Rewrite each page (Home/Team/Work/Chat/Files/Approvals/Social/Settings)
  to drive real snapshot data and match the bento, kanban, three-pane chat,
  file tree + pinned cards, approval queue, social schedule + calendar,
  and settings sub-nav layouts
- Split Chat and Settings into per-concern subcomponents so every file
  stays under 500 lines
- Add schema v4 for pinned files and scheduled posts plus IPC + service
  wiring; cover new behavior in unit tests
- Update onboarding labels and Hire form to remove ambiguity for the
  expanded e2e suite (all settings tabs + 8 routes at 1280 and 980)

AgentCompany-New/src/shared/domain.ts

@@ -234,7 +234,23 @@ export interface FileObjectRecord {
   storagePath: string;
   ownerType: "employee" | "agent" | "system";
   ownerId: string | null;
+  spaceId: string | null;
+  pinned: boolean;
   createdAt: string;
+  updatedAt: string | null;
+}
+
+export interface ScheduledPostRecord {
+  id: string;
+  orgId: string;
+  socialAccountId: string;
+  bodyMd: string;
+  scheduledFor: string;
+  state: "draft" | "scheduled" | "published" | "cancelled";
+  approvalId: string | null;
+  createdByEmployeeId: string | null;
+  createdAt: string;
+  updatedAt: string;
 }
 
 export interface ProviderRecord {
@@ -392,6 +408,7 @@ export interface AppSnapshot {
   chatAttachments: ChatAttachmentRecord[];
   chatPresence: ChatPresenceRecord[];
   files: FileObjectRecord[];
+  scheduledPosts: ScheduledPostRecord[];
   providers: ProviderRecord[];
   providerCatalog: ProviderCatalogEntry[];
   providerRequests: ProviderRequestRecord[];