create-pr

Use when the user wants to open a pull request — phrases like "/create-pr", "create the PR", "let's open the PR", "ship this branch", "raise a PR", or any time a feature branch is ready to be merged. Runs the project's pre-PR review gate (dispatches the dry-checker, security-reviewer, api-checker, and general-code-reviewer in diff-scoped mode in parallel), drives fixes for Critical/Important findings, verifies tests…