Fix intrange and G101 linting issues

- Convert for loops to use Go 1.22+ integer ranges in generate.go and helpers.go
- Disable G101 false positives for test vectors and environment variable names
- Add file-level gosec disable for bip85_test.go containing BIP85 test vectors
- Add targeted nolint comments for legitimate test data and constants

internal/cli/root.go

@@ -7,8 +7,8 @@ import (
 	"github.com/spf13/cobra"
 )
 
-// CLIEntry is the entry point for the secret CLI application
-func CLIEntry() {
+// Entry is the entry point for the secret CLI application
+func Entry() {
 	cmd := newRootCmd()
 	if err := cmd.Execute(); err != nil {
 		os.Exit(1)