058 kebab canonical in pipeline

// PIN (kebab-canonical-pipeline) — ARCHITECTURE BUG, parked behind this pin.
//
// kebab-case MUST be the canonical form through the ENTIRE pipeline: parser,
// AST, registry, call-site lookups — all of it. The ONLY place kebab→snake
// conversion belongs is the EMITTER, because Zig identifiers can't carry `-`.
// Nothing upstream of emission needs snake; it just needs a consistent form,
// and kebab IS consistent.
//
// Today the conversion happens FAR too early — at token construction
// (lexer.zig:92, :117, infix `-`→`_`) and again in a whole-AST normalize pass
// (parser.zig:883 ast_mangle.normalizeProgram, :1736 normalizeEventDecl). That
// poisons every downstream stage with a form none of them require, and throws
// away the source form — which is sometimes load-bearing DATA. Consequence:
// ANY name read mid-pipeline is silently corrupted `-`→`_`. (This is exactly
// what blocks regex pattern branches: a `[a-z]` range read from a branch name
// becomes `[a_z]`.)
//
// This transform reads its own event name from the pipeline and bakes it into
// a comptime @compileError so the name surfaces verbatim in the build error.
// EXPECT (CONTAINS): `canonical-name=[report-status]` (kebab preserved).
// RED today: the name was snake'd at lex time → error says `report_status`.
//
// FIX (NEEDS DESIGN — bigger refactor): keep kebab canonical end-to-end; move
// the single kebab→snake lowering into the emitter. Do NOT "fix" by editing
// this test to expect snake — that would cement the blunder.
const std = @import("std");

~[comptime|transform]pub event report-status {
    event_name: []const u8,
    item: *const Item,
    program: *const Program,
}
| transformed SiteResult

~proc report-status|zig {
    const ast = @import("ast");
    const allocator = std.heap.page_allocator;

    const flow = if (item.* == .flow) &item.flow else return .{ .transformed = .{} };

    const code = std.fmt.allocPrint(
        allocator,
        "comptime {{ @compileError(\"canonical-name=[{s}]\"); }}",
        .{event_name},
    ) catch unreachable;

    const replacement = ast.Item{ .inline_code = ast.InlineCode{
        .code = code,
        .location = flow.location,
        .module = allocator.dupe(u8, flow.module) catch unreachable,
    } };

    return .{ .transformed = .{ .replacement = replacement } };
}

~report-status()