Break long lines in function signatures and strings to comply with
77 character preference by using multi-line formatting and extracting
variables where appropriate.
- 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
