fix: simplify golangci-lint v2 config (remove exclusions, use tests: false)

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Co-Authored-By: Claude <[email protected]>

Author: 2 people

.golangci.yml

@@ -15,12 +15,3 @@ linters:
 issues:
   max-issues-per-linter: 0
   max-same-issues: 0
-
-exclusions:
-  rules:
-    - path: _test\.go
-      linters:
-        - errcheck
-    - path: examples/
-      linters:
-        - errcheck