Build Cobble project structure from the handoff

- Remove the preset document suite (letters, emails, invoices, quotes,
  PDF generation, line items) with its routes, API handlers and tables
- Rebrand to Cobble: site data, Lato, handoff design tokens (light and
  dark) in main.css, brand assets in public/brand, ember stone logo and
  regenerated favicons
- Add bots, bot_messages, bot_tasks and bot_task_steps tables, regenerate
  DB types (BUN_SQLITE_COBBLE_*) and add a sample crew seed (seed:bots)
- Add the chat shell at /admin/bots: rail with pinned coordinator and
  user popover, bottom-anchored conversation with composer, working-on
  panel, and a send-message API scoped to the session user
- Add BotStone and Wordmark components, crew status and relative time
  utils with tests, and update AGENTS.md

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/pages/admin/settings/(partials)/account-form-action.tsx

@@ -1,9 +1,9 @@
-import type { BUN_SQLITE_BSQLITE_USERS } from "@/db/types/db";
+import type { BUN_SQLITE_COBBLE_USERS } from "@/db/types/db";
 import Button from "@moduletrace/twui/layout/Button";
 import useFormInit from "@/src/hooks/use-form-init";
 
 export default function AccountFormAction(
-    _params: ReturnType<typeof useFormInit<BUN_SQLITE_BSQLITE_USERS>>,
+    _params: ReturnType<typeof useFormInit<BUN_SQLITE_COBBLE_USERS>>,
 ) {
     return (
         <>

src/pages/admin/settings/(partials)/account-form.tsx

@@ -1,7 +1,7 @@
 import Form from "@moduletrace/twui/form/Form";
 import LoadingOverlay from "@moduletrace/twui/elements/LoadingOverlay";
 import useFormInit from "@/src/hooks/use-form-init";
-import type { BUN_SQLITE_BSQLITE_USERS } from "@/db/types/db";
+import type { BUN_SQLITE_COBBLE_USERS } from "@/db/types/db";
 import submitAccountForm from "../(functions)/submit-account-form";
 import AccountFormAction from "./account-form-action";
 import Tag from "@moduletrace/twui/elements/Tag";
@@ -15,7 +15,7 @@ import type { UserFormObject } from "@/src/types";
 
 type Props = {
     existing_user?: UserFormObject;
-    existing_user_full?: BUN_SQLITE_BSQLITE_USERS;
+    existing_user_full?: BUN_SQLITE_COBBLE_USERS;
 };
 
 export default function AccountForm({ existing_user, existing_user_full }: Props) {