fix: raise MAX_FILE_SIZE_GB to the documented 100 GB limit

[Kayvan-Zahiri]

The fine-tuning docs say we accept files up to 100 GB, but check_file still used MAX_FILE_SIZE_GB = 50.1. A 60 GB file failed the size check even though it's under the documented limit.

I bumped the constant to 100 so it matches the docs. NUM_BYTES_IN_GB is still 2**30, so this is 100 GiB the same way the old 50.1 value was. Added a test that a 60 GB file now passes, and one that a file over the cap still fails.

Fixes #588

Made with Cursor

[broly-code-security-scanner]

Broly Security Scan

Warning

Latest baseline snapshot is stale. Broly is running in PR-only fallback mode until the next scheduled baseline refreshes. This does not block the PR.

Note

Re-scan this PR anytime with /broly scan — useful after /broly undismiss, or to refresh findings without a new push.

Broly — SAST (GLM-5.3-Flash) · Secrets · SCA · IaC · GH Actions · Base Images · Supply Chain Threats · Attack Hypotheses · Adversarial Verification

We're continuously improving Broly's accuracy and finding quality — your feedback is valuable. False positives, missed findings, bugs, and feature requests all welcome.