Initial build: Great Bear microbrewery site

- TanStack Start (React 19, Tailwind 4) frontend recreated from Stitch design
- PocketBase backend with schema migration + idempotent content seed
- Single Docker image running both services (non-root, healthchecked)
- deploy.sh to build & push to registry.tanshu.com
- Ansible playbook (roles: app, caddy) deploying to www.greatbear.in
  with Caddy TLS entries for the site and the PocketBase admin

ansible/roles/caddy/templates/greatbear.conf.j2

@@ -0,0 +1,12 @@
+# The Great Bear — managed by Ansible. Changes will be overwritten.
+# Frontend (TanStack Start)
+{{ site_domain }} {
+	encode zstd gzip
+	reverse_proxy 127.0.0.1:3000
+}
+
+# PocketBase API + admin UI (http://{{ admin_domain }}/_/)
+{{ admin_domain }} {
+	encode zstd gzip
+	reverse_proxy 127.0.0.1:8090
+}