fix for WeatherTools.cs

[samuel100]

The WeatherTool.cs does not point to the right endpoint to get a forecast, which results in an error. For example, https://api.weather.gov/points/47.6163,-122.0356 does not return a forecast. However, switching to https://api.weather.gov/gridpoints/SEW/134,67/forecast does.

Motivation and Context

How Has This Been Tested?

Breaking Changes

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context

[stephentoub]

Duplicate of #134 ?

[aaronpowell]

Yep, and having another look at the Python code, I realised that I missed a second call to the API, which this one implements (as does #134).

With #152 fixed, we can likely merge #134 and close this as a duplicate

[stephentoub]

Closing as a duplicate. Thanks!