create-pr

Validate and prepare code for a pull request across the swiss-ai-hub monorepo. Orchestrates committing, formatting, linting, testing, code review, main sync, and documentation sync. Use when user says 'create a PR', 'prepare pull request', 'get ready for PR', 'validate my changes', 'prepare for review', 'pre-merge checks', 'is this ready to merge', or 'release validation'. Do NOT use for only running tests (use…