fix(parser): parse parenthetical type syntax Map(K,V), Set(T), List(T)
parseTypeExpr only handled angle-bracket generics (Map<K,V>, Set<T>, List<T>)
but SpeckDL canonical syntax uses parentheses: Map(Nat, Account), Set(Nat), List(LogEntry).
This caused two bugs:
1. State property types emitted as raw strings (accounts: Map(Nat, Account))
2. Parametric types treated as enum interface names (TigerBeetleLedgerMap(Nat, Account))
Added List(T), Set(T), Map(K,V) handlers alongside existing angle-bracket handlers.
All 41/41 tests passing. TigerBeetle now generates clean TS types:
- accounts: Map<number, Account> (was Map(Nat, Account))
- pending: Set<number> (was Set(Nat))
- log: LogEntry[] (was List(LogEntry))
c3ade18feb