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/hooks/useGameLoop.ts

@@ -1,14 +1,15 @@
 import { useEffect, useRef } from 'react';
 import { GameEngine } from '@ai-tycoon/game-engine';
+import type { TickNotification } from '@ai-tycoon/game-engine';
 import { useGameStore } from '@/store';
 
-export function useGameLoop() {
+export function useGameLoop(skip = false) {
   const engineRef = useRef<GameEngine | null>(null);
   const companyName = useGameStore((s) => s.meta.companyName);
   const gameSpeed = useGameStore((s) => s.meta.gameSpeed);
 
   useEffect(() => {
-    if (!companyName) return;
+    if (!companyName || skip) return;
 
     const engine = new GameEngine({
       getState: () => {
@@ -30,7 +31,22 @@ export function useGameLoop() {
         };
       },
       setState: (partial) => {
+        const notifications = (partial as Record<string, unknown>)['_notifications'] as TickNotification[] | undefined;
+        delete (partial as Record<string, unknown>)['_notifications'];
+
         useGameStore.getState().updateState(partial);
+
+        if (notifications?.length) {
+          const store = useGameStore.getState();
+          for (const n of notifications) {
+            store.addNotification({
+              title: n.title,
+              message: n.message,
+              type: n.type,
+              tick: store.meta.tickCount,
+            });
+          }
+        }
       },
     });
 
@@ -41,7 +57,7 @@ export function useGameLoop() {
       engine.stop();
       engineRef.current = null;
     };
-  }, [companyName]);
+  }, [companyName, skip]);
 
   useEffect(() => {
     if (engineRef.current) {