fix(type): 补齐 float8/16/32/64/128 内建短名

float16(val) 等表达式转换与注解可解析为 CFloat16T/half。

lib/core/TypeSystem.py

@@ -1141,6 +1141,10 @@ BUILTIN_TYPE_ALIASES: dict[str, type] = {
     'long': CInt32T, 'ulong': CUInt32T,
     'longlong': CInt64T, 'ulonglong': CUInt64T,
     'ptrdifft': CPtrDiffT,
+    'float8': CFloat8T, 'float16': CFloat16T, 'float32': CFloat32T,
+    'float64': CFloat64T, 'float128': CFloat128T,
+    'float8_t': CFloat8T, 'float16_t': CFloat16T, 'float32_t': CFloat32T,
+    'float64_t': CFloat64T, 'float128_t': CFloat128T,
 }