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/utils/searchable-field-to-query-field.ts

@@ -1,10 +1,10 @@
 import type { ApiReqParams } from "../types";
-import type { BUN_SQLITE_BSQLITE_USERS_JOIN } from "../types/sql-joins";
+import type { BUN_SQLITE_COBBLE_USERS_JOIN } from "../types/sql-joins";
 
 export default function searchableFieldToQueryField({
     field,
 }: {
-    field: keyof BUN_SQLITE_BSQLITE_USERS_JOIN;
+    field: keyof BUN_SQLITE_COBBLE_USERS_JOIN;
 }): keyof ApiReqParams {
     switch (field) {
         case "email":