fix(offline): unlock finished hotseat games + raise entry budget to 120

- source: a finished hotseat game is never locked (its final rack is
  shown for review, not an Unlock button); guard locked on !isOver.
- bundle-size: raise the app-entry budget 115 -> 120 KB for the hotseat
  UI (PIN pad, roster, host menu), which lives in the always-loaded New
  Game / Game / Lobby screens; the offline engine + PIN hashing stay lazy.

ui/src/lib/localgame/source.hotseat.test.ts

@@ -120,13 +120,14 @@ describe('LocalSource hotseat', () => {
     expect(await src.verifyHostPin('local:h7', '0000')).toBe(false);
   });
 
-  it('persists a naturally finished game (scoreless run) as finished', async () => {
+  it('persists a naturally finished game (scoreless run) as finished, and unlocked', async () => {
     const src = await hotseat('local:h8', [
-      { kind: 'human', name: 'A' },
-      { kind: 'human', name: 'B' },
+      { kind: 'human', name: 'A', pin: await newLock('1111') },
+      { kind: 'human', name: 'B', pin: await newLock('2222') },
     ]);
     for (let i = 0; i < 6; i++) await src.pass('local:h8');
     const st = await src.gameState('local:h8');
     expect(st.game.status).toBe('finished');
+    expect(st.locked).toBeFalsy(); // a finished game shows its final rack, never an unlock button
   });
 });