feat: add workspace.dirname default and dynamic license options

[pyramation]

Summary

Adds two improvements to the workspace boilerplate template:

1. defaultFrom: "workspace.dirname" for the repoName question - reduces redundant prompts by defaulting repository name to the workspace folder name
2. optionsFrom: "licenses" for the license question - replaces hardcoded license options with dynamic loading from create-gen-app, ensuring the list stays in sync (including the new CLOSED license)

Dependencies:

• feat(pgpm): add workspace.dirname resolver for boilerplate templates constructive#435 (registers workspace.dirname resolver)
• feat: add optionsFrom resolver support for dynamic options dev-utils#27 (implements optionsFrom support and registers licenses resolver)

Review & Testing Checklist for Human

• Ensure constructive PR #435 is merged before merging this PR
• Ensure dev-utils PR #27 is merged and released before merging this PR
• Critical: Test that license options actually appear when running pgpm init workspace (if optionsFrom fails silently, the list will be empty)
• Verify CLOSED license appears in the license options list
• Test that repoName defaults to the folder name you entered

Test plan: After both upstream PRs are merged, run pgpm init workspace and verify:

1. Repository name defaults to the workspace folder name
2. License dropdown shows all options including CLOSED (should show: MIT, Apache-2.0, ISC, BSD-3-Clause, GPL-3.0, MPL-2.0, Unlicense, CLOSED)

Notes

• Link to Devin run: https://app.devin.ai/sessions/fed966add0284ae0b88295cb40116e7b
• Requested by: Dan Lynch (@pyramation)

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