feat: add bsk record for semantic user-action traces

Capture user actions in the Agent Window and export a record-only
trace (pages[] + navigate/click/fill/select/press steps with target
descriptors). Adds the record overlay UI aligned with the control
overlay, and wires record start/stop/await through CLI, daemon,
protocol, and extension.

crates/bsk-protocol/src/tools/mod.rs

@@ -1,4 +1,4 @@
-//! Typed params/results for the 21 `tool.*` RPC methods (§7).
+//! Typed params/results for the `tool.*` RPC methods (§7).
 
 pub mod console;
 pub mod dialog;
@@ -7,6 +7,7 @@ pub mod interaction;
 pub mod navigation;
 pub mod network;
 pub mod observation;
+pub mod record;
 pub mod script;
 pub mod session;
 pub mod tabs;
@@ -19,6 +20,7 @@ pub use interaction::*;
 pub use navigation::*;
 pub use network::*;
 pub use observation::*;
+pub use record::*;
 pub use script::*;
 pub use session::*;
 pub use tabs::*;