build: 初始化 MeloASR TypeScript 工程

建立 Linux-only 的 TypeScript/Electron 构建基础，统一项目名、包名和 0.1.0 版本元数据。

AI-assisted-by: Codex
AI-model: gpt-5.6-sol
AI-reasoning-effort: medium
Co-authored-by: Codex <codex@openai.com>

.gitignore

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+node_modules/
+linux/fcitx5/build/
+dist/
+dist-test/
+release/
+packaging/out/
+chatgpt_amd64.deb

package.json

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+{
+  "name": "meloasr",
+  "productName": "MeloASR",
+  "version": "0.1.0",
+  "private": true,
+  "author": "MeloASR contributors",
+  "description": "基于网页语音识别后端和 Fcitx5 的 Linux 实时语音输入工具",
+  "main": "dist/main/index.js",
+  "scripts": {
+    "clean": "node scripts/clean.mjs",
+    "build": "npm run clean && tsc && esbuild src/preload/backend.ts --bundle --platform=node --format=cjs --external:electron --outfile=dist/preload/backend.js && node scripts/copy-static.mjs",
+    "typecheck": "tsc --noEmit",
+    "start": "npm run build && electron --ozone-platform=x11 .",
+    "build:fcitx5": "cmake -S linux/fcitx5 -B linux/fcitx5/build -DCMAKE_BUILD_TYPE=Release && cmake --build linux/fcitx5/build --parallel",
+    "build:linux:dir": "npm run build && electron-builder --config packaging/electron-builder.yml --linux dir",
+    "package:deb": "npm run build:linux:dir && packaging/deb/build-deb.sh",
+    "package:rpm": "npm run build:linux:dir && packaging/rpm/build-rpm.sh",
+    "test": "npm run typecheck && tsc -p tsconfig.test.json && node --test dist-test/test/*.test.js"
+  },
+  "devDependencies": {
+    "@types/node": "^24.0.0",
+    "electron": "42.3.0",
+    "electron-builder": "^26.0.0",
+    "esbuild": "^0.25.0",
+    "typescript": "^5.9.0"
+  }
+}

scripts/clean.mjs

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+import fs from 'node:fs';
+import path from 'node:path';
+
+const root = path.resolve(import.meta.dirname, '..');
+fs.rmSync(path.join(root, 'dist'), { recursive: true, force: true });
+fs.rmSync(path.join(root, 'dist-test'), { recursive: true, force: true });

scripts/copy-static.mjs

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+import fs from 'node:fs';
+import path from 'node:path';
+
+const root = path.resolve(import.meta.dirname, '..');
+const copies = [
+  ['src/renderer/settings.html', 'dist/renderer/settings.html'],
+  ['src/renderer/settings.css', 'dist/renderer/settings.css'],
+  ['src/renderer/overlay.html', 'dist/renderer/overlay.html'],
+  ['src/renderer/overlay.css', 'dist/renderer/overlay.css'],
+  ['logo.png', 'dist/assets/logo.png']
+];
+
+for (const [source, target] of copies) {
+  const destination = path.join(root, target);
+  fs.mkdirSync(path.dirname(destination), { recursive: true });
+  fs.copyFileSync(path.join(root, source), destination);
+}

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "CommonJS",
+    "moduleResolution": "Node",
+    "rootDir": "src",
+    "outDir": "dist",
+    "strict": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "skipLibCheck": true,
+    "sourceMap": true,
+    "types": ["node"]
+  },
+  "include": ["src/**/*.ts"],
+  "exclude": ["node_modules", "dist"]
+}

tsconfig.test.json

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+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "rootDir": ".",
+    "outDir": "dist-test",
+    "sourceMap": false
+  },
+  "include": ["src/**/*.ts", "test/**/*.ts"]
+}