feat(checker): examples() and spec_files() carry the specification's files

A consumer of the checker crate needs no path into this repository.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HS8WZziDnyxunC23MUxrLp

target/debug/build/serde-2b4970e64ce601f3/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.

target/debug/build/serde-2b4970e64ce601f3/out/private.rs

@@ -0,0 +1,6 @@
+#[doc(hidden)]
+pub mod __private229 {
+    #[doc(hidden)]
+    pub use crate::private::*;
+}
+use serde_core::__private229 as serde_core_private;

target/debug/build/serde-2b4970e64ce601f3/output

@@ -0,0 +1,13 @@
+cargo:rerun-if-changed=build.rs
+cargo:rustc-cfg=if_docsrs_then_no_serde_core
+cargo:rustc-check-cfg=cfg(feature, values("result"))
+cargo:rustc-check-cfg=cfg(if_docsrs_then_no_serde_core)
+cargo:rustc-check-cfg=cfg(no_core_cstr)
+cargo:rustc-check-cfg=cfg(no_core_error)
+cargo:rustc-check-cfg=cfg(no_core_net)
+cargo:rustc-check-cfg=cfg(no_core_num_saturating)
+cargo:rustc-check-cfg=cfg(no_diagnostic_namespace)
+cargo:rustc-check-cfg=cfg(no_serde_derive)
+cargo:rustc-check-cfg=cfg(no_std_atomic)
+cargo:rustc-check-cfg=cfg(no_std_atomic64)
+cargo:rustc-check-cfg=cfg(no_target_has_atomic)

target/debug/build/serde-2b4970e64ce601f3/root-output

@@ -0,0 +1 @@
+/tmp/claude-1000/-home-swaits-Code-wanderbooks/dadefedb-8c25-4271-8f56-da5f226f635b/scratchpad/bookspec/target/debug/build/serde-2b4970e64ce601f3/out