feat(js): m10 extensions (pause, restart, speed-up via Frame) with tests

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

js/test/m09-runtime.test.js

@@ -2,7 +2,8 @@ import test from 'node:test'
 import assert from 'node:assert/strict'
 import { runIO, runApp } from '../src/runtime.js'
 import { pure, draw, randomSeed, map, sequence } from '../src/io.js'
-import { main } from '../src/app.js'
+import { states, classicActions, render } from '../src/app.js'
+import { map as mapStream } from '../src/stream.js'
 import { view } from '../src/view.js'
 import { newGame, tick } from '../src/spawn.js'
 
@@ -24,6 +25,9 @@ const fakePlatform = (seed = 42) => {
   }
 }
 
+// The m09 program: ticks every 150 ms. (The shipped `main` uses speedActions after m10, so these tests build their own.)
+const main = map(randomSeed, (seed) => mapStream(states(seed, classicActions), render))
+
 // What the platform should have been asked to draw for a scene.
 const expectedCalls = (scene) =>
   scene.map((s) =>