This commit fixes an issue where the parser failed to handle TypeScript type assertions (as, satisfies) inside class extends clauses, specifically when generics are involved (e.g., class C extends (B<T> as D) {}).

The fix involves:

1. Updating parseMaybeAssign in the TypeScript plugin to properly handle as and satisfies expressions instead of returning early.
2. Updating parseSubscript to correctly identify < as the start of generic type arguments even when followed by as or satisfies, preventing it from incorrectly bailing out to a comparison operator.

Tests added for nested generics, array types, and satisfies operator.