feat: public API, SEO and existing surfaces

internal/infrastructure/mcpserver/server.go

@@ -41,6 +41,7 @@ type listArticlesInput struct {
 	Sort   string `json:"sort,omitempty" jsonschema:"field:direction, e.g. title:asc or updated_at:desc"`
 	Site   string `json:"site,omitempty" jsonschema:"site key"`
 	SEO    string `json:"seo,omitempty" jsonschema:"ready, suggestions or hidden"`
+	Lang   string `json:"lang,omitempty" jsonschema:"language tag of the versions to list, e.g. en or pt-BR"`
 	Format string `json:"format,omitempty" jsonschema:"body format: markdown, html or json"`
 }
 
@@ -50,7 +51,7 @@ type getArticleInput struct {
 }
 
 type createArticleInput struct {
-	Title string `json:"title" jsonschema:"3 to 200 characters, cannot be changed later"`
+	Title string `json:"title" jsonschema:"3 to 200 characters"`
 	Body  string `json:"body" jsonschema:"HTML body"`
 }
 
@@ -180,6 +181,7 @@ func (s *server) listArticles(ctx context.Context, _ *mcp.CallToolRequest, in li
 	textQuery(query, "sort", in.Sort)
 	textQuery(query, "site", in.Site)
 	textQuery(query, "seo", in.SEO)
+	textQuery(query, "lang", in.Lang)
 	textQuery(query, "format", in.Format)
 	return s.call(ctx, http.MethodGet, "/v1/article/", query, nil)
 }