Wire up find_path tool in agent2 (#35799)

Release Notes:

- N/A

---------

Co-authored-by: Antonio Scandurra <me@as-cii.com>

crates/agent2/src/tools.rs

@@ -1 +1,5 @@
-mod glob;
+mod find_path_tool;
+mod thinking_tool;
+
+pub use find_path_tool::*;
+pub use thinking_tool::*;