milestone 15: make a green run mean a real pass

src/docs_drift_test.zig

@@ -5,6 +5,7 @@
 
 const std = @import("std");
 const docs = @import("docs_files");
+const cli = @import("cli.zig");
 const routes = @import("web/routes.zig");
 const model = @import("config/model.zig");
 
@@ -48,12 +49,11 @@ test "every settings key appears in docs/reference/configuration.md" {
 
 test "every cli subcommand has its own reference heading in docs/reference/cli.md" {
     const gpa = std.testing.allocator;
-    const subcommands = [_][]const u8{ "run", "check", "export", "import", "version", "help" };
-    for (subcommands) |name| {
+    for (cli.command_names) |entry| {
         // Anchors on the reference-section heading ("## `import FILE`" starts
         // with "## `import"), so prose mentions elsewhere cannot mask a removed
         // command section.
-        const needle = try std.fmt.allocPrint(gpa, "## `{s}", .{name});
+        const needle = try std.fmt.allocPrint(gpa, "## `{s}", .{entry.name});
         defer gpa.free(needle);
         if (std.mem.indexOf(u8, docs.reference_cli_md, needle) == null) {
             std.debug.print("subcommand heading missing from docs/reference/cli.md: {s}\n", .{needle});