feat: initialize Discord bot project with basic command structure

- Add package.json with dependencies and scripts for building, testing, and running the bot.
- Implement bot startup logic in src/bot.ts, handling interactions and commands.
- Create command structure in src/commands/index.ts, including a ping command in src/commands/ping.ts.
- Add configuration loading from environment variables in src/config.ts.
- Implement command registration in Discord API in src/deploy-commands.ts.
- Bootstrap the bot in src/index.ts.
- Configure TypeScript settings in tsconfig.json.

tsconfig.json

@@ -0,0 +1,48 @@
+{
+  // Visit https://aka.ms/tsconfig to read more about this file
+  "compilerOptions": {
+    // File Layout
+    "rootDir": "src",
+    "outDir": "dist",
+
+    // Environment Settings
+    // See also https://aka.ms/tsconfig/module
+    "module": "node16",
+    "target": "es2022",
+    "types": ["node", "jest"],
+    // For nodejs:
+    // "lib": ["esnext"],
+    // "types": ["node"],
+    // and npm install -D @types/node
+
+    // Other Outputs
+    "sourceMap": true,
+    "declaration": true,
+    "declarationMap": true,
+
+    // Stricter Typechecking Options
+    "noUncheckedIndexedAccess": true,
+    "exactOptionalPropertyTypes": true,
+
+    // Style Options
+    // "noImplicitReturns": true,
+    // "noImplicitOverride": true,
+    // "noUnusedLocals": true,
+    // "noUnusedParameters": true,
+    // "noFallthroughCasesInSwitch": true,
+    // "noPropertyAccessFromIndexSignature": true,
+
+    // Recommended Options
+    "strict": true,
+    "verbatimModuleSyntax": false,
+    "isolatedModules": true,
+    "noUncheckedSideEffectImports": true,
+    "moduleResolution": "node16",
+    "moduleDetection": "auto",
+    "skipLibCheck": true,
+
+    "esModuleInterop": true
+  },
+  "include": ["src/**/*.ts", "tests/**/*.ts"],
+  "exclude": ["dist", "node_modules"]
+}