chore: Migrate from Nix flakes to mise

.gitignore

@@ -22,5 +22,3 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
-
-.direnv

README.md

@@ -1,73 +1,42 @@
-# React + TypeScript + Vite
+# Space Simulator
 
-This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+## 前提条件
 
-Currently, two official plugins are available:
+[mise](https://mise.jdx.dev/getting-started.html) をインストールしてください。
 
-- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Babel](https://babeljs.io/) (or [oxc](https://oxc.rs) when used in [rolldown-vite](https://vite.dev/guide/rolldown)) for Fast Refresh
-- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
+```sh
+curl https://mise.run | sh
 
-## React Compiler
-
-The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
+echo 'eval "$(~/.local/bin/mise activate bash)"' >> ~/.bashrc # bash
+echo 'eval "$(~/.local/bin/mise activate zsh)"' >> ~/.zshrc # zsh
+echo '~/.local/bin/mise activate fish | source' >> ~/.config/fish/config.fish # fish
+```
 
-## Expanding the ESLint configuration
+設定後、シェルを再起動してください。
 
-If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
+## セットアップ
 
-```js
-export default defineConfig([
-  globalIgnores(["dist"]),
-  {
-    files: ["**/*.{ts,tsx}"],
-    extends: [
-      // Other configs...
+```sh
+mise trust
+mise install # install command line tools
+npm install
+```
 
-      // Remove tseslint.configs.recommended and replace with this
-      tseslint.configs.recommendedTypeChecked,
-      // Alternatively, use this for stricter rules
-      tseslint.configs.strictTypeChecked,
-      // Optionally, add this for stylistic rules
-      tseslint.configs.stylisticTypeChecked,
+## 開発
 
-      // Other configs...
-    ],
-    languageOptions: {
-      parserOptions: {
-        project: ["./tsconfig.node.json", "./tsconfig.app.json"],
-        tsconfigRootDir: import.meta.dirname,
-      },
-      // other options...
-    },
-  },
-]);
+```sh
+npm run dev
 ```
 
-You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
+## コマンド集
+
+### Mise
 
-```js
-// eslint.config.js
-import reactX from "eslint-plugin-react-x";
-import reactDom from "eslint-plugin-react-dom";
+```sh
+mise use node@25 # add a program with a version
+mise install # install all progarms listed in mise.toml with version in mise.lock
 
-export default defineConfig([
-  globalIgnores(["dist"]),
-  {
-    files: ["**/*.{ts,tsx}"],
-    extends: [
-      // Other configs...
-      // Enable lint rules for React
-      reactX.configs["recommended-typescript"],
-      // Enable lint rules for React DOM
-      reactDom.configs.recommended,
-    ],
-    languageOptions: {
-      parserOptions: {
-        project: ["./tsconfig.node.json", "./tsconfig.app.json"],
-        tsconfigRootDir: import.meta.dirname,
-      },
-      // other options...
-    },
-  },
-]);
+# https://mise.jdx.dev/dev-tools/mise-lock.html
+mise upgrade # upgrade packages
+mise lock # generate lockfile
 ```

mise.lock

@@ -0,0 +1,8 @@
+[[tools.node]]
+version = "25.6.1"
+backend = "core:node"
+"platforms.linux-arm64" = { checksum = "sha256:90fea701897ecb424aafa2824539476598437ad9f21e649732a85cc2d955d845", url = "https://nodejs.org/dist/v25.6.1/node-v25.6.1-linux-arm64.tar.gz"}
+"platforms.linux-x64" = { checksum = "sha256:3809fdbfd54829bad363b9db8e96ca3600509e2ff20ede74181cfc1ca8451ce3", url = "https://nodejs.org/dist/v25.6.1/node-v25.6.1-linux-x64.tar.gz"}
+"platforms.macos-arm64" = { checksum = "sha256:a80cb252d170a4730f78f5950cf19a46106f156e5886e5c1cc8c5602aea60243", url = "https://nodejs.org/dist/v25.6.1/node-v25.6.1-darwin-arm64.tar.gz"}
+"platforms.macos-x64" = { checksum = "sha256:3b68f847d9d8861c7c8bfef32c540d14f6ca18bfcbf5f6495a595b9529063a9b", url = "https://nodejs.org/dist/v25.6.1/node-v25.6.1-darwin-x64.tar.gz"}
+"platforms.windows-x64" = { checksum = "sha256:0ae2300cdf44c399b5b351edbefb3534d1342a6fabd64302ca8c8e2fb86b0445", url = "https://nodejs.org/dist/v25.6.1/node-v25.6.1-win-x64.zip"}

mise.toml

@@ -0,0 +1,5 @@
+[tools]
+node = "25"
+
+[settings]
+lockfile = true