Merge branch 'main' into feat/filesystem-append-tools

Author: agn-7

.gitignore

@@ -301,3 +301,4 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+.claude/settings.local.json

CONTRIBUTING.md

@@ -21,6 +21,10 @@ We're more selective about:
 We don't accept:
 - **New server implementations** — We encourage you to publish them yourself, and link to them from the README.
 
+## Testing
+
+When adding or configuring tests for servers implemented in TypeScript, use **vitest** as the test framework. Vitest provides better ESM support, faster test execution, and a more modern testing experience.
+
 ## Documentation
 
 Improvements to existing documentation is welcome - although generally we'd prefer ergonomic improvements than documenting pain points if possible!