Landed on a stable ABI

Release notes
Generics (v0.7)
Selective monomorphization for stdlib hot paths: List<T>, Map<K,V>, Result<T>, Option<T>, Decimal: emitted as linkonce_odr typed wrappers so multiple compilation units share them without link conflicts; @monomorphize opt-in for user code; type-erased fallback.
Async (v0.8)
Real spawn/await codegen, cooperative kern routines (16 KB guard-paged stack, configurable via KERN_ROUTINE_STACK_SIZE), routine-aware libuv IO (file/DNS/TCP), routine-aware libpq + mbedTLS, spawn_thread for CPU-bound work via the libuv worker pool. Two spawned sleep_ms(80) tasks complete in ≈82 ms. ABI-breaking decisions are now behind us, not ahead.