v0.1.0

Initial public OSS release for shorts_test.

Highlights:

• Korean short-form video generation pipeline in main_gpt.py.
• Public MIT repo with README, contribution guide, security policy, changelog, roadmap, and release checklist.
• Python CI, CodeQL, Dependabot, pytest coverage, Bandit static security scanning, pip-audit dependency auditing, and CI badges.
• Dry-run support and generated media attribution metadata for source/license review.
• Focused media/rendering helper modules with regression tests.

Verification:

• Python CI success
• CodeQL success
• Local pytest: 18 passed
• Bandit High: 0
• pip-audit: no known vulnerabilities
• High-confidence secret scan: no matches