History: AI-driven alternate-history simulator

Pax Historia-style sim where the LLM is the world engine.

- React 19 + Vite 6 + Tailwind v4 + shadcn/ui frontend
- Express single-port backend (/api + /sse + built client + SPA fallback)
- SQLite (better-sqlite3) persistence, one row per game
- MapLibre choropleth map (OpenFreeMap dark + ISO_A3 regions)
- Defensive turn loop: strip fences, balanced-{} extract, parse, clamp 0-100,
  retry-once nudge, generic 'unclear' fallback; never crashes on bad output
- 5 seed presets (wwii-1939, coldwar-1955, modern-2025, no-wwii-1940, aegis-2400)
- LLM client over native fetch w/ injectable transport (mesh-bot pattern);
  LLM_STUB=1 deterministic transport for tests/e2e
- Unit (vitest, 19) + deterministic Playwright e2e
- Multi-stage node:22-slim Docker + Traefik (history.dev.kkhost.pl:4321)

Co-Authored-By: OpenCode <opencode@users.noreply.github.com>

eslint.config.js

@@ -0,0 +1,40 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+import reactHooks from 'eslint-plugin-react-hooks';
+import globals from 'globals';
+
+// Flat config (ESLint 9). Browser code (src/) gets react-hooks + browser globals;
+// everything else (server, shared, e2e, configs, scripts) gets node globals.
+export default tseslint.config(
+  {
+    ignores: ['**/dist/**', '**/node_modules/**', 'server/dist/**'],
+  },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ['src/**/*.{ts,tsx}'],
+    plugins: { 'react-hooks': reactHooks },
+    languageOptions: { globals: { ...globals.browser, ...globals.es2022 } },
+    rules: {
+      ...reactHooks.configs.recommended.rules,
+      // We intentionally pass handler objects to hooks that read them via a ref.
+      'react-hooks/exhaustive-deps': 'off',
+    },
+  },
+  {
+    files: [
+      'server/**/*.ts',
+      'shared/**/*.ts',
+      'e2e/**/*.ts',
+      'vite.config.ts',
+      'vitest.config.ts',
+      'playwright.config.ts',
+      'scripts/**/*.mjs',
+    ],
+    languageOptions: { globals: { ...globals.node, ...globals.es2022 } },
+    rules: {
+      // Node 22 has fetch/AbortSignal/structuredClone as globals.
+      'no-undef': 'off',
+    },
+  },
+);