fix(r3): use errors.Is for sentinel error comparisons

Replace direct == checks with errors.Is so wrapped errors are handled
correctly (authkeys Verify, daemon server/EOF, Magefile uninstall).

Refs: ask r3, 100 Go Mistakes #51
Made-with: Cursor

1 files changed, 2 insertions, 1 deletions

diff --git a/Magefile.go b/Magefile.go
index 742ffbf..a72c6be 100644
--- a/Magefile.go
+++ b/Magefile.go
@@ -5,6 +5,7 @@ package main
 // Magefile for goprecords. Targets follow the same style as other Go projects (e.g. hexai).
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -82,7 +83,7 @@ func Uninstall() error {
 		gopath = filepath.Join(home, "go")
 	}
 	dest := filepath.Join(gopath, "bin", binaryName)
-	if err := os.Remove(dest); err != nil && !os.IsNotExist(err) {
+	if err := os.Remove(dest); err != nil && !errors.Is(err, os.ErrNotExist) {
 		return err
 	}
 	return nil