chore(cli): add bun run link scripts + fix init template versions

- Add link/link:consume/link:unlink scripts to root package.json
- Document cross-repo bun link workflow in CLAUDE.md
- Fix hardcoded @uncaged/workflow-runtime "^0.1.0" → "*" in
  init workspace and init template scaffolds (actual version is 0.3.x)

packages/cli-workflow/src/commands/init/templates.ts

@@ -6,7 +6,7 @@ export function templatePackageJson(templateName: string): string {
       private: true,
       type: "module",
       dependencies: {
-        "@uncaged/workflow-runtime": "^0.1.0",
+        "@uncaged/workflow-runtime": "*",
         zod: "^4.0.0",
       },
     },

packages/cli-workflow/src/commands/init/workspace.ts

@@ -28,7 +28,7 @@ function workflowsPackageJson(): string {
       private: true,
       type: "module",
       dependencies: {
-        "@uncaged/workflow-runtime": "^0.1.0",
+        "@uncaged/workflow-runtime": "*",
         zod: "^4.0.0",
       },
     },