Fix typos in code comments and docstrings

[Chessing234]

Summary

• Fix various spelling errors across graphcast.py, model_utils.py, data_utils.py, and autoregressive.py
• Correct misleading text in the add_node_latitude docstring in model_utils.py where "longitude" was used instead of "latitude"

Changes

graphcast/graphcast.py:

• "and operates only operates in" -> "and only operates in" (module docstring)
• "embdded" -> "embedded" (2 occurrences in inline comments)
• "dimensionaly" -> "dimensionality" (inline comment)
• "Transfer data frome" -> "Transfer data from"
• "Conver output" -> "Convert output"

graphcast/model_utils.py:

• "minues" -> "minus" (2 occurrences in docstrings)
• "arond" -> "around" (comment in get_rotation_matrices_to_local_coordinates)
• Fix add_node_latitude docstring in get_graph_spatial_features: changed "longitude"/"longitudes" to "latitude"/"latitudes" since the parameter controls latitude inference

graphcast/data_utils.py:

• "inverval" -> "interval" (docstring for get_day_progress)

graphcast/autoregressive.py:

• "Roughtly" -> "Roughly" (docstring for gradient_checkpointing parameter)

Test plan

• No functional changes; only comments and docstrings are modified
• Verified all fixes are correct English spellings

🤖 Generated with Claude Code

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.