Add complete game loop: training, revenue, market, offline catch-up

- Model training system: training jobs produce TrainedModels with
  calculated capabilities based on compute, data, and research
- Market system: organic API demand and consumer subscriptions now
  generate real revenue from deployed models
- Talent system: salary costs calculated from department headcount
- Toast notification system for game events (training complete, etc.)
- Offline catch-up: progress bar + summary screen when returning
- Market page: pricing controls for API and subscription products
- Finance page: income statement, cash charts, funding history
- Tick processor now runs all 7 systems in correct dependency order

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/src/App.tsx

@@ -1,15 +1,42 @@
+import { useState, useEffect } from 'react';
 import { useGameStore } from '@/store';
 import { MainLayout } from '@/components/layout/MainLayout';
 import { NewGameScreen } from '@/components/game/NewGameScreen';
+import { OfflineCatchUp } from '@/components/game/OfflineCatchUp';
 import { useGameLoop } from '@/hooks/useGameLoop';
+import { TICK_INTERVAL_MS } from '@ai-tycoon/shared';
 
 export function App() {
   const companyName = useGameStore((s) => s.meta.companyName);
-  useGameLoop();
+  const lastTickTimestamp = useGameStore((s) => s.meta.lastTickTimestamp);
+  const [catchUpTicks, setCatchUpTicks] = useState<number | null>(null);
+  const [catchUpDone, setCatchUpDone] = useState(false);
+
+  useEffect(() => {
+    if (!companyName || catchUpDone) return;
+    const elapsed = Date.now() - lastTickTimestamp;
+    const missed = Math.floor(elapsed / TICK_INTERVAL_MS);
+    if (missed > 10) {
+      setCatchUpTicks(missed);
+    } else {
+      setCatchUpDone(true);
+    }
+  }, [companyName, lastTickTimestamp, catchUpDone]);
+
+  useGameLoop(!catchUpDone);
 
   if (!companyName) {
     return <NewGameScreen />;
   }
 
+  if (catchUpTicks !== null && !catchUpDone) {
+    return (
+      <OfflineCatchUp
+        missedTicks={catchUpTicks}
+        onComplete={() => setCatchUpDone(true)}
+      />
+    );
+  }
+
   return <MainLayout />;
 }