allow including context

https://claude.ai/chat/a6df04ed-85dd-46b9-a3bd-26b5ae3c78f5

Cargo.lock

@@ -91,9 +91,10 @@ dependencies = [
 
 [[package]]
 name = "cel_js_example"
-version = "0.0.0"
+version = "0.1.0"
 dependencies = [
  "cel",
+ "serde_json",
 ]
 
 [[package]]
@@ -112,6 +113,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
+
 [[package]]
 name = "js-sys"
 version = "0.3.77"
@@ -287,6 +294,12 @@ version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a0d197bd2c9dc6e53b84da9556a69ba4cdfab8619eb41a8bd1cc2027a0f6b1d"
 
+[[package]]
+name = "ryu"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
+
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -313,6 +326,18 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.142"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "030fedb782600dcbd6f02d479bf0d817ac3bb40d644745b769d6a96bc3afc5a7"
+dependencies = [
+ "itoa",
+ "memchr",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.15.1"