Serialization of SignedOp now works; adding to the CRDT doesn't

Cargo.lock

@@ -264,6 +264,12 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "base64ct"
 version = "1.6.0"
@@ -298,6 +304,7 @@ dependencies = [
  "random_color",
  "serde",
  "serde_json",
+ "serde_with 3.8.1",
  "sha2 0.10.8",
  "time 0.1.45",
 ]
@@ -803,7 +810,7 @@ dependencies = [
  "secp256k1",
  "serde",
  "serde_json",
- "serde_with",
+ "serde_with 2.3.3",
  "sha2 0.10.8",
  "sha3",
  "signature",
@@ -1177,6 +1184,7 @@ checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
 dependencies = [
  "equivalent",
  "hashbrown 0.14.5",
+ "serde",
 ]
 
 [[package]]
@@ -1995,7 +2003,25 @@ dependencies = [
  "indexmap 1.9.3",
  "serde",
  "serde_json",
- "serde_with_macros",
+ "serde_with_macros 2.3.3",
+ "time 0.3.36",
+]
+
+[[package]]
+name = "serde_with"
+version = "3.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ad483d2ab0149d5a5ebcd9972a3852711e0153d863bf5a5d0391d28883c4a20"
+dependencies = [
+ "base64 0.22.1",
+ "chrono",
+ "hex",
+ "indexmap 1.9.3",
+ "indexmap 2.2.6",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "serde_with_macros 3.8.1",
  "time 0.3.36",
 ]
 
@@ -2011,6 +2037,18 @@ dependencies = [
  "syn 2.0.66",
 ]
 
+[[package]]
+name = "serde_with_macros"
+version = "3.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "65569b702f41443e8bc8bbb1c5779bd0450bbe723b56198980e80ec45780bce2"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "sha-1"
 version = "0.9.8"
@@ -2078,6 +2116,7 @@ dependencies = [
  "clap",
  "serde",
  "serde_json",
+ "serde_with 3.8.1",
  "tokio",
  "websockets",
 ]