Rename Forte to LunarFront, generalize for any small business

Rebrand from Forte (music-store-specific) to LunarFront (any small business):
- Package namespace @forte/* → @lunarfront/*
- Database forte/forte_test → lunarfront/lunarfront_test
- Docker containers, volumes, connection strings
- UI branding, localStorage keys, test emails
- All documentation and planning docs

Generalize music-specific terminology:
- instrumentDescription → itemDescription
- instrumentCount → itemCount
- instrumentType → itemCategory (on service templates)
- New migration 0027_generalize_terminology for column renames
- Seed data updated with generic examples
- RBAC descriptions updated

packages/backend/src/routes/v1/auth.ts

@@ -1,7 +1,7 @@
 import type { FastifyPluginAsync } from 'fastify'
 import { eq } from 'drizzle-orm'
 import bcrypt from 'bcrypt'
-import { RegisterSchema, LoginSchema } from '@forte/shared/schemas'
+import { RegisterSchema, LoginSchema } from '@lunarfront/shared/schemas'
 import { users } from '../../db/schema/users.js'
 
 const SALT_ROUNDS = 10