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

docs/database.md

@@ -6,8 +6,8 @@ PostgreSQL 16. Two databases:
 
 | Database | Port | Usage |
 |----------|------|-------|
-| `forte` | 5432 | Development |
-| `forte_api_test` | 5432 | API integration tests (auto-created by test runner) |
+| `lunarfront` | 5432 | Development |
+| `lunarfront_api_test` | 5432 | API integration tests (auto-created by test runner) |
 
 ## Migrations
 
@@ -35,7 +35,7 @@ All domain tables include `company_id` (uuid FK to `company`). Every query filte
 
 | Table | Description |
 |-------|-------------|
-| `company` | Tenant (music store business) |
+| `company` | Tenant (tenant business) |
 | `location` | Physical store location |
 | `user` | Staff/admin user account |