Revert "Management UI"

This reverts commit f11404c574.

README.md

@@ -21,31 +21,9 @@ php artisan serve
 ```
 
 Configure the MySQL connection in `.env` before running migrations. The
-application resolves a business only from the request hostname through the
-`business_domains` table; it never guesses a tenant from the first business
-in the database. For local multi-tenant work, map each configured hostname to
-127.0.0.1 in `/etc/hosts`.
-
-## Platform and tenant setup
-
-Migrations create schema only. They do not create a demo business or a
-business owner. After migrating, open `/install` once and create the platform
-administrator. That account can sign in at `/manager/sign-in`, create
-businesses, edit their primary domains, and share the one-time owner setup
-link generated during provisioning.
-
-Business provisioning creates the tenant domain, settings, booking rules,
-opening hours, system roles, owner staff profile, and seven-day owner
-invitation in one transaction. The owner chooses a password through that
-invitation; platform administrators and business owners are separate account
-types.
-
-If demo data is useful for local development, opt into the existing seeder
-explicitly:
-
-```bash
-NEXTCHAIR_SEED_DEMO=true php artisan db:seed
-```
+application resolves a business from the request hostname through the
+`business_domains` table. Local development can use a configured local domain
+or the `APP_DEFAULT_BUSINESS_SLUG` fallback.
 
 ## Docker deployment
 
@@ -81,10 +59,6 @@ docker compose exec app php artisan key:generate
 docker compose exec app php artisan migrate
 ```
 
-Then visit `http://localhost:8085/install` to create the first platform
-administrator. Do not run migrations or create tenants from container startup;
-the tenant owner is provisioned manually from Manager.
-
 Migrations are intentionally not run by container startup. To inspect the
 application logs: