Add game UI panels, keyboard shortcuts, docs narrative overhaul, and unified dev script

- Add MiniStarMap, NpcMarketPanel, ShipStatusPanel, useKeyboardShortcuts
- Add progress bars for approach/mining operations and cargo fill indicator
- Rewrite docs from spreadsheet-first to exploration-first open-world RPG
- Replace dev:db + dev:standalone with unified dev script (scripts/dev.sh)
- Add Vite chunk splitting for three.js and spacetimedb
- Fix displayName dependency in useSpacetimeConnection
- Remove stale usePlayerSession.ts
- Add AGENTS.md files across all packages

apps/game/vite.config.ts

@@ -7,4 +7,14 @@ export default defineConfig({
     jsx: "automatic",
     jsxImportSource: "react",
   },
+  build: {
+    rollupOptions: {
+      output: {
+        manualChunks: {
+          three: ["three", "@react-three/fiber", "@react-three/drei"],
+          spacetimedb: ["spacetimedb"],
+        },
+      },
+    },
+  },
 });