clarify agent instructions (#5655)

.github/copilot-instructions.md

@@ -43,7 +43,8 @@
 - Suggestions to add comments for self-documenting code
 - Refactoring suggestions unless there's a clear bug or maintainability issue
 - Listing multiple potential issues in one comment (choose the single most critical issue)
-- Suggestions to add more logging (the codebase needs less logging, not more)
+- Suggestions to add logging statements, unless for errors or security events (the codebase needs less logging, not more)
+
 
 ## Response Format
 

AGENTS.md

@@ -85,7 +85,7 @@ Simplicity: Don't make things optional that don't need to be - the compiler will
 Simplicity: Booleans should default to false, not be optional
 Errors: Don't add error context that doesn't add useful information (e.g., `.context("Failed to X")` when error already says it failed)
 Simplicity: Avoid overly defensive code - trust Rust's type system
-Logging: Clean up existing logs, don't add more
+Logging: Clean up existing logs, don't add more unless for errors or security events
 
 ## Never