feat: add tools

.vscode/settings.json

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+{
+    "deno.enable": true,
+    "deno.enablePaths": ["tools/"]
+}

tools/README.md

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+# Tools
+
+## getIssue
+
+Github token을 받아서 최신 100개의 Issues 들의 내용을 긁어옵니다.
+```sh
+deno run --allow-net --allow-env getIssue.ts 'YOUR GIHTUB TOKEN'
+```
+으로 실행하면 됩니다.
+
+토큰을 발급받기 위해선 [다음 링크](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token)를 참조하면 됩니다.

tools/getIssue.ts

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+#! /usr/bin/env deno run --allow-net --allow-env
+
+type Issue = {
+    id: number;
+    url: string;
+    title: string;
+    body: string;
+    labels: {
+        name: string;
+    }[]
+}
+/**
+ * get issue from github
+ * @param repo repository name with owner (e.g. denoland/deno)
+ * @param token your github token
+ * @returns up to 100 issue objects
+ * @example
+ * ```ts
+ * const issues = await getIssues('denoland/deno', 'your-token')
+ * console.log(issues);
+ * ```
+ */
+async function getIssues(repo: string, token: string): Promise<Issue[]> {
+    const res = await fetch(`https://api.github.com/repos/${repo}/issues?per_page=100`, {
+        headers: {
+            Accept: 'application/vnd.github.v3+json',
+            Authorization: `Token ${token}`
+        }
+    });
+    return await res.json();
+}
+
+
+if (import.meta.main) {
+    const arg = Deno.args.length > 0 ? Deno.args[0] : undefined;
+    const token = arg ?? Deno.env.get("GITHUB_TOKEN");
+    if(!token) {
+        console.error("GITHUB_TOKEN is not set");
+        Deno.exit(1);
+    }
+    const issues = await getIssues("vi117/scrap-yard", token);
+    console.log(issues.map(i => `# ${i.title}\n${i.body}`).join("\n\n"));
+}