v0.17.0

• Remove the _size config suffix and the parse_size/ParseSize/parseSize helper from all four SDKs — byte sizes are now always an integer _bytes field, in config and output alike, keeping the unit in the key instead of a parseable string in the value (breaking)
• Add is_valid_rfc3339 and validate complete _rfc3339 date-times in afdata lint, requiring the mandatory RFC 3339 offset and rejecting a missing offset, a space separator, or a trailing timezone name
• Add is_valid_bcp47 and validate _bcp47 language-tag structure in afdata lint, rejecting the POSIX underscore form (zh_CN) and other malformed tags while still allowing well-formed-but-unregistered tags
• Complete strict-string format linting for _utc_offset, _rfc3339_date, and _rfc3339_time, which were previously type-checked only
• Enforce single-URL structure for _url fields in afdata lint — reject internal whitespace and bare user:pass@host credential strings while allowing scheme-prefixed and relative URLs
• Type-check numeric suffixes in afdata lint — durations must be numbers and minor-unit currency (_cents/_micro/_jpy) must be integers
• Pin _percent as a value in units of percent (recategorized from ratio to percentage), and clarify integer-vs-string encoding across the epoch, _sats, and _msats siblings