Cleanup: extract constants, fix typecheck, add ESLint, organize store types

- Remove unused initCount state from useAuthGate hook
- Replace magic number with MAX_SAVES_PER_USER constant in saves route
- Extract duplicated EMAIL_REGEX and MIN_PASSWORD_LENGTH in auth routes
- Fix game-simulation typecheck failure by adding DOM lib to tsconfig
- Extract store UI types (ActivePage, InfraNav, etc.) to store/types.ts
- Fix let→const for non-reassigned arrays in servingPipeline
- Fix useless initial assignments in reputationSystem
- Fix ambiguous multiline array access in sanityChecks
- Add minimal ESLint config with typescript-eslint
- Add .planning/ and *.log to .gitignore

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

apps/web/src/hooks/useAuthGate.ts

@@ -37,7 +37,6 @@ export function useAuthGate(): AuthGateState {
   const [admin, setAdmin] = useState(false);
   const [cloudSave, setCloudSave] = useState<CloudSaveInfo | null>(null);
   const [hasConflict, setHasConflict] = useState(false);
-  const [initCount, setInitCount] = useState(0);
 
   const init = useCallback(async () => {
     setLoading(true);
@@ -98,7 +97,6 @@ export function useAuthGate(): AuthGateState {
   useState(() => { init(); });
 
   const retry = useCallback(() => {
-    setInitCount(c => c + 1);
     init();
   }, [init]);
 

apps/web/src/store/index.ts

@@ -46,37 +46,9 @@ import {
   TECH_TREE, onModelDeployed,
 } from '@token-empire/game-engine';
 import { INITIAL_RIVALS } from '@token-empire/game-engine';
+import type { ActivePage, InfraNav, ModelsTab, UIState, GameNotification } from './types';
 
-export type ActivePage = 'dashboard' | 'infrastructure' | 'research' | 'models'
-  | 'market' | 'serving' | 'talent' | 'data' | 'competitors' | 'finance' | 'achievements' | 'leaderboard' | 'invitations' | 'settings';
-
-export type InfraNavLevel = 'clusters' | 'cluster' | 'campus' | 'datacenter';
-
-export interface InfraNav {
-  level: InfraNavLevel;
-  clusterId?: string;
-  campusId?: string;
-  datacenterId?: string;
-}
-
-type ModelsTab = 'overview' | 'train' | 'models' | 'products';
-
-interface UIState {
-  activePage: ActivePage;
-  notifications: GameNotification[];
-  infraNav: InfraNav;
-  modelsTab: ModelsTab;
-}
-
-export interface GameNotification {
-  id: string;
-  title: string;
-  message: string;
-  type: 'info' | 'success' | 'warning' | 'danger';
-  tick: number;
-  read: boolean;
-  action?: { label: string; page?: ActivePage; modelsTab?: ModelsTab };
-}
+export type { ActivePage, InfraNavLevel, InfraNav, ModelsTab, UIState, GameNotification } from './types';
 
 function emptyDC(): Pick<DataCenter, 'networkSummary' | 'effectiveComputeRacks' | 'usedSlots' | 'usedPowerKW' | 'energyCostPerTick' | 'maintenanceCostPerTick' | 'currentUptime'> {
   return {

apps/web/src/store/types.ts

@@ -0,0 +1,30 @@
+export type ActivePage = 'dashboard' | 'infrastructure' | 'research' | 'models'
+  | 'market' | 'serving' | 'talent' | 'data' | 'competitors' | 'finance' | 'achievements' | 'leaderboard' | 'invitations' | 'settings';
+
+export type InfraNavLevel = 'clusters' | 'cluster' | 'campus' | 'datacenter';
+
+export interface InfraNav {
+  level: InfraNavLevel;
+  clusterId?: string;
+  campusId?: string;
+  datacenterId?: string;
+}
+
+export type ModelsTab = 'overview' | 'train' | 'models' | 'products';
+
+export interface UIState {
+  activePage: ActivePage;
+  notifications: GameNotification[];
+  infraNav: InfraNav;
+  modelsTab: ModelsTab;
+}
+
+export interface GameNotification {
+  id: string;
+  title: string;
+  message: string;
+  type: 'info' | 'success' | 'warning' | 'danger';
+  tick: number;
+  read: boolean;
+  action?: { label: string; page?: ActivePage; modelsTab?: ModelsTab };
+}