feat: connect application input and output boundaries

src/application/ports/in/application-api.ts

@@ -0,0 +1,41 @@
+import type { SessionState } from "../auth-session-port.js";
+import type { StoragePort } from "../storage-port.js";
+
+export type { SessionState } from "../auth-session-port.js";
+
+export type ColorSchemePreference = "system" | "light" | "dark";
+
+export type RenderFailureReport = Readonly<{
+  routeId: string;
+  buildId: string;
+  boundaryName: "route" | "feature";
+}>;
+
+export type ReleaseSummary = Readonly<{
+  buildId: string;
+  releaseId: string;
+  configSchemaVersion: string;
+  apiContractVersion: string;
+}>;
+
+export type ApplicationApi = Readonly<{
+  session: Readonly<{
+    getSnapshot(): SessionState;
+    subscribe(listener: () => void): () => void;
+    beginSignIn(returnTo?: string): Promise<void>;
+    signOut(): Promise<void>;
+    recover(): Promise<"restored" | "no-session">;
+  }>;
+  preferences: Readonly<{
+    getColorScheme(): ColorSchemePreference;
+    setColorScheme(
+      preference: ColorSchemePreference,
+    ): ReturnType<StoragePort["write"]>;
+  }>;
+  diagnostics: Readonly<{
+    reportRenderFailure(report: RenderFailureReport): void;
+  }>;
+  runtime: Readonly<{
+    getReleaseSummary(): Promise<ReleaseSummary>;
+  }>;
+}>;