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/main/database/schema.ts

@@ -1,6 +1,6 @@
 import type { DatabaseSync } from "node:sqlite";
 
-const SCHEMA_VERSION = 3;
+const SCHEMA_VERSION = 4;
 
 export function installSchema(db: DatabaseSync): void {
   db.exec(`
@@ -455,5 +455,34 @@ export function installSchema(db: DatabaseSync): void {
       insert into schema_migrations(version, name, applied_at)
       values (3, 'onboarding_execution_schema', datetime('now'));
     `);
+    currentVersion = 3;
+  }
+
+  if (currentVersion < 4) {
+    db.exec(`
+      alter table file_objects add column pinned integer not null default 0;
+      alter table file_objects add column space_id text;
+      alter table file_objects add column updated_at text;
+
+      create table if not exists scheduled_posts (
+        id text primary key,
+        org_id text not null references organizations(id) on delete cascade,
+        social_account_id text not null references social_accounts(id) on delete cascade,
+        body_md text not null,
+        scheduled_for text not null,
+        state text not null,
+        approval_id text references approvals(id) on delete set null,
+        created_by_employee_id text references employees(id) on delete set null,
+        created_at text not null,
+        updated_at text not null
+      );
+
+      create index if not exists idx_files_org_pinned on file_objects(org_id, pinned);
+      create index if not exists idx_scheduled_posts_org_state on scheduled_posts(org_id, state);
+      create index if not exists idx_scheduled_posts_account_date on scheduled_posts(social_account_id, scheduled_for);
+
+      insert into schema_migrations(version, name, applied_at)
+      values (4, 'files_pinned_and_scheduled_posts', datetime('now'));
+    `);
   }
 }