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/bots/[bot_id]/(partials)/bot-message-line.tsx

@@ -0,0 +1,19 @@
+import Stack from "@moduletrace/twui/layout/Stack";
+import P from "@moduletrace/twui/layout/P";
+import NeedsYouChip from "./needs-you-chip";
+
+type Props = {
+    text: string;
+    needs_you?: boolean;
+};
+
+export default function BotMessageLine({ text, needs_you }: Props) {
+    return (
+        <Stack className="gap-1.5! items-start max-w-full">
+            <P noMargin className="text-sm leading-5 text-ink whitespace-pre-wrap break-words">
+                {text}
+            </P>
+            {needs_you ? <NeedsYouChip /> : null}
+        </Stack>
+    );
+}