feat(atlassian): implement milestone M1 - scaffold skill and shared runtime

skills/atlassian/shared/scripts/src/cli.ts

@@ -0,0 +1,22 @@
+import { Command } from "commander";
+
+const program = new Command()
+  .name("atlassian")
+  .description("Portable Atlassian CLI for multi-agent skills")
+  .version("0.1.0");
+
+program
+  .command("health")
+  .description("Validate configuration and Atlassian connectivity")
+  .option("--format <format>", "Output format", "json")
+  .action((options) => {
+    const payload = {
+      ok: false,
+      message: "health is not implemented yet",
+      format: options.format,
+    };
+
+    console.log(JSON.stringify(payload, null, 2));
+  });
+
+program.parse(process.argv);