README badges and package metadata use the old miden-para repository path

Several metadata links still use the old `0xMiden/miden-para` path:

- README license/test/build badges
- root `package.json` `repository.url` and `bugs.url`
- `packages/use-miden-para-react/package.json` `repository.url` and `bugs.url`
- `packages/create-miden-para-react/package.json` `repository.url` and `bugs.url`

That path redirects today, but the active repository is `0xMiden/para-sdk`. Updating these links keeps README badges and npm package metadata canonical.

The issue lists specific files to update: the root README.md for badges, root package.json, and two package.json files in the packages/ directory. Search for 'miden-para' in these files and replace with 'para-sdk' in the repository URLs. Verify the changes by checking that the badges in the README still render correctly and that the package metadata points to the correct GitHub repository.

Written by the indexing model from the issue text.