Represent intents as psbts instead of raw txs (#722)

* rework intent proof

* update proto

* bump to go-sdk "intent-proof-rework" branch

* fixes

* optional taptree in RegisterIntent

* typo and nit fixes

* Rename message IntentProof > Intent

* Update deps

---------

Co-authored-by: altafan <18440657+altafan@users.noreply.github.com>

Author: louisinger

api-spec/openapi/swagger/ark/v1/admin.swagger.json

@@ -286,17 +286,6 @@
         }
       }
     },
-    "v1Bip322Signature": {
-      "type": "object",
-      "properties": {
-        "signature": {
-          "type": "string"
-        },
-        "message": {
-          "type": "string"
-        }
-      }
-    },
     "v1CreateNoteRequest": {
       "type": "object",
       "properties": {
@@ -415,6 +404,17 @@
         }
       }
     },
+    "v1Intent": {
+      "type": "object",
+      "properties": {
+        "proof": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        }
+      }
+    },
     "v1IntentInfo": {
       "type": "object",
       "properties": {
@@ -452,8 +452,8 @@
             "type": "string"
           }
         },
-        "proof": {
-          "$ref": "#/definitions/v1Bip322Signature"
+        "intent": {
+          "$ref": "#/definitions/v1Intent"
         }
       }
     },

api-spec/openapi/swagger/ark/v1/service.swagger.json

@@ -460,17 +460,6 @@
         }
       }
     },
-    "v1Bip322Signature": {
-      "type": "object",
-      "properties": {
-        "signature": {
-          "type": "string"
-        },
-        "message": {
-          "type": "string"
-        }
-      }
-    },
     "v1ConfirmRegistrationRequest": {
       "type": "object",
       "properties": {
@@ -485,9 +474,9 @@
     "v1DeleteIntentRequest": {
       "type": "object",
       "properties": {
-        "proof": {
-          "$ref": "#/definitions/v1Bip322Signature",
-          "description": "A BIP322 signature that includes any of the inputs of the intent to be deleted to prove the\nownership of that intent."
+        "intent": {
+          "$ref": "#/definitions/v1Intent",
+          "description": "an intent proof that includes any of the inputs of the intent to be deleted to prove the\nownership of that intent."
         }
       }
     },
@@ -609,6 +598,17 @@
         }
       }
     },
+    "v1Intent": {
+      "type": "object",
+      "properties": {
+        "proof": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        }
+      }
+    },
     "v1MarketHour": {
       "type": "object",
       "properties": {
@@ -646,8 +646,8 @@
       "type": "object",
       "properties": {
         "intent": {
-          "$ref": "#/definitions/v1Bip322Signature",
-          "description": "BIP322 signature embeds the outpoints to be spent and new ones to be created, as well as the\nthe proof of funds."
+          "$ref": "#/definitions/v1Intent",
+          "description": "an intent proof that embeds the outpoints to be spent and new ones to be created, as well as the\nproof of funds."
         }
       }
     },

api-spec/protobuf/ark/v1/admin.proto

@@ -143,7 +143,7 @@ message IntentInfo {
   repeated IntentInput inputs = 4;
   repeated IntentInput boarding_inputs = 5;
   repeated string cosigners_public_keys = 6;
-  Bip322Signature proof = 7;
+  Intent intent = 7;
 }
 
 message Output {

api-spec/protobuf/ark/v1/service.proto

@@ -143,18 +143,18 @@ message GetInfoResponse {
 }
 
 message RegisterIntentRequest {
-  // BIP322 signature embeds the outpoints to be spent and new ones to be created, as well as the
-  // the proof of funds.
-  Bip322Signature intent = 1;
+  // an intent proof that embeds the outpoints to be spent and new ones to be created, as well as the
+  // proof of funds.
+  Intent intent = 1;
 }
 message RegisterIntentResponse {
   string intent_id = 1;
 }
 
 message DeleteIntentRequest {
-  // A BIP322 signature that includes any of the inputs of the intent to be deleted to prove the
+  // an intent proof that includes any of the inputs of the intent to be deleted to prove the
   // ownership of that intent.
-  Bip322Signature proof = 1;
+  Intent intent = 1;
 }
 message DeleteIntentResponse {}
 

api-spec/protobuf/ark/v1/types.proto

@@ -48,8 +48,8 @@ message Tapscripts {
   repeated string scripts = 1;
 }
 
-message Bip322Signature {
-  string signature = 1;
+message Intent {
+  string proof = 1;
   string message = 2;
 }