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>

src/index.css

@@ -0,0 +1,102 @@
+@import "tailwindcss";
+
+/*
+ * Dark "command center" theme. `:root` is the dark palette (the app is dark by
+ * default); `.dark` mirrors it so any `.dark`-conditional component styling stays
+ * consistent. shadcn/ui components read the `--color-*` aliases defined in
+ * `@theme inline` below, which map onto these variables.
+ */
+:root {
+  --background: #0a0e14;
+  --foreground: #e2e8f0;
+  --card: #101724;
+  --card-foreground: #e2e8f0;
+  --popover: #0d131e;
+  --popover-foreground: #e2e8f0;
+  --primary: #f59e0b;
+  --primary-foreground: #0a0e14;
+  --secondary: #1b2636;
+  --secondary-foreground: #cbd5e1;
+  --muted: #152030;
+  --muted-foreground: #8aa0b8;
+  --accent: #0e2a3a;
+  --accent-foreground: #67e8f9;
+  --destructive: #ef4444;
+  --destructive-foreground: #ffffff;
+  --border: #1f2b3d;
+  --input: #22304a;
+  --ring: #f59e0b;
+  --radius: 0.5rem;
+}
+
+.dark {
+  --background: #0a0e14;
+  --foreground: #e2e8f0;
+  --card: #101724;
+  --card-foreground: #e2e8f0;
+  --popover: #0d131e;
+  --popover-foreground: #e2e8f0;
+  --primary: #f59e0b;
+  --primary-foreground: #0a0e14;
+  --secondary: #1b2636;
+  --secondary-foreground: #cbd5e1;
+  --muted: #152030;
+  --muted-foreground: #8aa0b8;
+  --accent: #0e2a3a;
+  --accent-foreground: #67e8f9;
+  --destructive: #ef4444;
+  --destructive-foreground: #ffffff;
+  --border: #1f2b3d;
+  --input: #22304a;
+  --ring: #f59e0b;
+  --radius: 0.5rem;
+}
+
+@theme inline {
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-destructive-foreground: var(--destructive-foreground);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
+}
+
+@layer base {
+  * {
+    border-color: var(--border);
+  }
+  html,
+  body,
+  #root {
+    height: 100%;
+  }
+  body {
+    margin: 0;
+    background-color: var(--background);
+    color: var(--foreground);
+    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
+      "Helvetica Neue", Arial, sans-serif;
+    -webkit-font-smoothing: antialiased;
+  }
+  /* MapLibre canvas: give the map pane a solid dark base behind the tiles. */
+  .maplibregl-canvas {
+    background-color: var(--background);
+  }
+}