Fix documentation inconsistencies, type annotations, and CI configuration

[Copilot]

Repository audit revealed multiple inconsistencies between documentation and implementation, incomplete type annotations, and CI configuration issues.

Configuration

• Removed non-existent compile script entry from pyproject.toml
• Added logs/ and wandb/ to .gitignore

Documentation

• Fixed config parameter mismatches in README:
  • test_split → val_split
  • batch_size default: 4 → 8
  • learning_rate default: 1e-4 → 5e-5
  • Added missing lr_scheduler parameter
• Added required WANDB_PROJECT and WANDB_ENTITY to .env.example

Type Annotations

# Before
def training_step(self, batch: Batch, batch_idx: int) -> None:
    ...
    return loss  # Type mismatch

# After  
def training_step(self, batch: Batch, batch_idx: int) -> torch.Tensor:
    ...
    return loss

• Fixed return types for training_step, validation_step, and configure_optimizers

CI/CD

• Fixed GitHub Actions: added uv to $PATH after installation
• Removed Python 3.10/3.11 from test matrix (only 3.12+ supported per pyproject.toml)

Code Quality

• Replaced print() with logger.warning() in exception handlers

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• astral.sh
  • Triggering command: /usr/bin/curl curl -LsSf REDACTED (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

Take a look at this repo and see if you spot any issues

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