chore(license): add MIT LICENSE and SPDX headers to source files

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Sławomir Koszewski
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

scripts/create-pca.js

@@ -1,4 +1,6 @@
 #!/usr/bin/env node
+// SPDX-License-Identifier: MIT
+
 
 import fs from "node:fs";
 import os from "node:os";

src/azure/client-auth.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 import { DefaultAzureCredential, ClientSecretCredential, DeviceCodeCredential } from "@azure/identity";
 
 export async function getCredential(credentialType, options) {

src/azure/index.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 /**
  * @module azure
  * 

src/azure/pca-auth.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 
 import open, { apps } from "open";
 import fs from "node:fs";

src/cli.js

@@ -1,4 +1,6 @@
 #!/usr/bin/env node
+// SPDX-License-Identifier: MIT
+
 
 import { parseArgs } from "node:util";
 import jmespath from "jmespath";

src/devops/index.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 /**
  * A DevOps helpers module.
  */

src/graph/app.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 /**
  * Get an Azure application by its display name.
  *

src/graph/auth.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 import { loginInteractive } from "../azure/index.js";
 import { Client } from "@microsoft/microsoft-graph-client";
 

src/graph/index.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 export * from "./auth.js";
 export * from "./app.js";
 export * from "./sp.js";

src/graph/sp.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 export async function getServicePrincipal(client, appId) {
   const result = await client
     .api("/servicePrincipals")

src/index.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 import { readFile } from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";

src/markdown.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 function formatCell(value) {
   const text = value == null
     ? ""