add base64 config, fix errors

[hmk]

This pull request includes several changes to improve the configuration and documentation for the Box integration, as well as some code and dependency updates. The most important changes include adding new environment variables, updating the README.md for better clarity, modifying the main application code to support Base64 encoded JWT, and adding new dependencies.

Configuration and Documentation Updates:

• .env.template: Added BOX_USER_ID and BOX_JWT_BASE64 environment variables.
• README.md: Updated with new instructions for setting up Box JWT, including Base64 encoding and necessary environment variables. [1] [2] [3] [4] [5]

Code Updates:

• src/index.ts: Modified to support Base64 encoded JWT for Box authentication. Added a console log override to filter out warnings. [1] [2] [3]

Dependency Updates:

• package.json: Added new dependencies patch-package, postinstall-postinstall, and @types/pdfjs-dist. [1] [2]

Patch Updates:

• patches/pdfjs-dist+4.10.38.patch: Added a patch to conditionally log warnings in development mode only.