v1.1.0

brokm v1.1.0

Highlights:

• add brokm build --freestanding with a reduced runtime profile for AOT builds
• reject hosted-only natives at freestanding AOT typecheck time
• omit -lm and compile out hosted-only runtime pieces under BK_FREESTANDING
• add focused freestanding test coverage and docs updates
• bump brokm -v / embedding version output to 1.1.0