chore: update for os to posix rename

Author: RossComputerGuy

src/phantom/painting/canvas.zig

@@ -66,8 +66,8 @@ pub fn line(self: *const Self, start: vizops.vector.UsizeVector2, end: vizops.ve
 }
 
 pub fn arc(self: *const Self, pos: vizops.vector.UsizeVector2, angles: vizops.vector.Float32Vector2, radius: f32, buffer: []const u8) !void {
-    const startAngle = std.math.degreesToRadians(f32, angles.value[0]);
-    const endAngle = std.math.degreesToRadians(f32, angles.value[1]);
+    const startAngle = std.math.degreesToRadians(angles.value[0]);
+    const endAngle = std.math.degreesToRadians(angles.value[1]);
 
     const center = vizops.vector.UsizeVector2.init([_]usize{
         pos.value[0] - std.math.lossyCast(usize, @cos(startAngle) * radius),

src/phantom/scene/node.zig

@@ -157,7 +157,7 @@ pub fn format(self: *const Node, comptime _: []const u8, options: std.fmt.Format
 }
 
 pub fn formatName(self: *const Node, optAlloc: ?std.mem.Allocator, writer: anytype) !void {
-    if (builtin.mode == .Debug and !builtin.strip_debug_info and @hasDecl(std.os.system, "getErrno") and @hasDecl(std.os.system, "fd_t")) {
+    if (builtin.mode == .Debug and !builtin.strip_debug_info and @hasDecl(std.posix, "errno") and @hasDecl(std.posix.system, "fd_t")) {
         const alloc = optAlloc orelse self.allocator;
         const debug = try std.debug.getSelfDebugInfo();
         const mod = try debug.getModuleForAddress(self.id);