013 orisha router rejects terminal

// NEGATIVE TEST — orisha:router must reject TERMINAL (`|`) pattern branches.
//
// The router dispatches INTO the matched route — effect semantics — so its
// pattern branches must be effect branches (`!`). The `[GET /path]` bracket
// syntax is just a branch-name escape, orthogonal to `|`/`!` kind. Orisha
// predates `BranchKind` and was kind-blind, silently accepting `| [pattern]`.
// This pins that the transform is now kind-aware and rejects `|` loudly.

~import orisha
~import std/io

const std = @import("std");

const TestRequest = struct {
    method: []const u8,
    path: []const u8,
};

const req = TestRequest{ .method = "GET", .path = "/" };

// `|` here is WRONG — these are dispatch handlers, must be `!`.
~orisha:router(req: &req)
| [GET /] |> std/io:print.ln("matched GET /")
| [*] |> std/io:print.ln("catch-all")