add marko 6 example as keyed/marko

Author: kanashimia

frameworks/keyed/marko/.gitignore

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+node_modules
+dist
+*.log

frameworks/keyed/marko/.marko-run/routes.d.ts

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+/*
+  WARNING: This file is automatically generated and any changes made to it will be overwritten without warning.
+  Do NOT manually edit this file or your changes will be lost.
+*/
+
+import { NotHandled, NotMatched, GetPaths, PostPaths, GetablePath, GetableHref, PostablePath, PostableHref, Platform } from "@marko/run/namespace";
+import type * as Run from "@marko/run";
+
+
+declare module "@marko/run" {
+	interface AppData extends Run.DefineApp<{
+		routes: {
+			"/": { verb: "get"; };
+		}
+	}> {}
+}
+
+declare module "../src/routes/_index/+page.marko" {
+  namespace MarkoRun {
+    export { NotHandled, NotMatched, GetPaths, PostPaths, GetablePath, GetableHref, PostablePath, PostableHref, Platform };
+    export type Route = Run.Routes["/"];
+    export type Context = Run.MultiRouteContext<Route> & Marko.Global;
+    export type Handler = Run.HandlerLike<Route>;
+    /** @deprecated use `((context, next) => { ... }) satisfies MarkoRun.Handler` instead */
+    export const route: Run.HandlerTypeFn<Route>;
+  }
+}
+
+declare module "../src/routes/+layout.marko" {
+  export interface Input extends Run.LayoutInput<typeof import("../src/routes/+layout.marko")> {}
+  namespace MarkoRun {
+    export { NotHandled, NotMatched, GetPaths, PostPaths, GetablePath, GetableHref, PostablePath, PostableHref, Platform };
+    export type Route = Run.Routes["/"];
+    export type Context = Run.MultiRouteContext<Route> & Marko.Global;
+    export type Handler = Run.HandlerLike<Route>;
+    /** @deprecated use `((context, next) => { ... }) satisfies MarkoRun.Handler` instead */
+    export const route: Run.HandlerTypeFn<Route>;
+  }
+}

frameworks/keyed/marko/.prettierrc.json

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+{
+  "trailingComma": "all",
+  "printWidth": 80,
+  "tabWidth": 2,
+  "semi": true,
+  "singleQuote": false,
+  "markoSyntax": "html",
+  "experimentalTernaries": true,
+  "markoAttrParen": true
+}