Lemonade Stand: browser recreation of the Atari 8-bit BASIC game

Faithful day loop - weather report, cost of lemonade rising over the
summer, glasses/signs/price decisions, thunderstorms, heat waves and
street crews - with the $$ LEMONSVILLE DAILY FINANCIAL REPORT $$ laid
out the way it printed.

The simulation is kept out of React so a season can be run headlessly:
a careful player compounds $2.00 into roughly $22 over twelve days,
while an all-in player goes broke about seven times in ten.

Weather scenes are pixel rectangles in SVG and the music is a small
chiptune engine on the Web Audio API, so there are no binary assets.
The screen is locked to a 4:3 tube and never scrolls.

src/components/TitleScreen.tsx

@@ -0,0 +1,35 @@
+import { Btn, Line } from './Crt'
+import { bannerRows } from './logo'
+
+const BANNER = bannerRows('LEMONADE')
+
+export function TitleScreen({
+  onStart,
+  onInstructions,
+  seed,
+}: {
+  onStart: () => void
+  onInstructions: () => void
+  seed: number
+}) {
+  return (
+    <div className="stack">
+      <pre className="banner" aria-label="LEMONADE">
+        {BANNER.join('\n')}
+      </pre>
+      <Line className="center accent">S T A N D</Line>
+      <Line />
+      <Line className="center">LEMONSVILLE, CALIFORNIA</Line>
+      <Line className="center dim">ATARI 8-BIT EDITION &middot; SEED {seed}</Line>
+      <Line />
+      <Line className="center blink">PRESS START</Line>
+      <Line />
+      <div className="row center">
+        <Btn kind="primary" onClick={onStart}>
+          START
+        </Btn>
+        <Btn onClick={onInstructions}>INSTRUCTIONS</Btn>
+      </div>
+    </div>
+  )
+}