Normalize package repository URL

[votuan921]

Summary

• update package.json repository metadata from an SSH-style GitHub URL to a public git+https URL
• leave runtime code, dependencies, package version, and package contents unchanged

Validation

• metadata assertion for package.json repository URL
• npm pack --dry-run --ignore-scripts --json .
• git diff --check

Note: npm pack emits the existing .npmignore fallback warning for this package; the dry run exits successfully.