Support Multi-Block Games

[nloding]

Problem

Games larger than ~131KB return an error instead of handling gracefully. Games spanning GFile block boundaries are not supported.

Current Behavior

Returns error when game exceeds block size.

Solution

Support games that span multiple GFile blocks:

1. Detect when game data exceeds block boundary
2. Allocate additional blocks as needed
3. Update index entry to track multi-block games

Files

• src/gfile.rs:220-221
• src/database.rs

Priority

Medium - needed for very long games with extensive annotations