feat(i18n): expand catalog runtime and developer tooling

- add Intl-backed locale definitions, formatters, catalog loaders, and runtime hooks\n- compile hashed production catalogs from package-scoped catalog sources\n- drive Lingui extraction and compilation directly from project JSON config\n- redesign the devtool with localized controls, draggable persistence, settings, navigation, copy actions, ANSI output, and fullscreen support\n- extend repository APIs, CLI coverage, documentation, and runtime tests

packages/i18n/src/devtool/api-client.ts

@@ -1,5 +1,10 @@
 export type DevtoolAction = "compile" | "extract"
 
+export interface DevtoolProject {
+  locales: readonly string[]
+  sourceLocale: string
+}
+
 interface ApiError {
   error?: string
 }
@@ -29,3 +34,9 @@ export async function runDevtoolAction(
     { method: "POST" }
   )
 }
+
+export async function requestDevtoolProject(baseUrl = "/__i18n") {
+  const normalizedBaseUrl = baseUrl.replace(/\/+$/, "")
+
+  return requestDevtoolJson<DevtoolProject>(`${normalizedBaseUrl}/project`)
+}