feat: Implement public access for tenant content

- Add TenantOptionalAuth middleware to allow access to public content without requiring authentication.
- Introduce ListPublicPublished and PublicDetail methods in the content service to retrieve publicly accessible content.
- Create tenant_public HTTP routes for listing and showing public content, including preview and main asset retrieval.
- Enhance content tests to cover scenarios for public content access and permissions.
- Update specifications to reflect the new public content access features and rules.

backend/app/commands/http/http.go

@@ -8,6 +8,8 @@ import (
 	"quyun/v2/app/errorx"
 	"quyun/v2/app/http/super"
 	"quyun/v2/app/http/tenant"
+	"quyun/v2/app/http/tenant_join"
+	"quyun/v2/app/http/tenant_public"
 	"quyun/v2/app/jobs"
 	"quyun/v2/app/middlewares"
 	"quyun/v2/app/services"
@@ -53,6 +55,8 @@ func Command() atom.Option {
 					middlewares.Provide,
 					super.Provide,
 					tenant.Provide,
+					tenant_join.Provide,
+					tenant_public.Provide,
 					// {Provider: api.Provide},
 					// {Provider: web.Provide},
 				),