Add comments to the accounts proto file

pkg/accounts/accounts.proto

@@ -5,39 +5,62 @@ option go_package = "github.com/mdiluz/rove/pkg/accounts";
 package accounts;
 
 service Accountant {
+    // Register should create a new account in the database
+    // It will return an error if the account already exists
     rpc Register(RegisterInfo) returns (RegisterResponse) {}
+
+    // AssignValue assigns a key-value pair to an account, or overwrites an existing key
     rpc AssignValue(DataKeyValue) returns (Response) {}
+
+    // GetValue will get the value for a key for an account
     rpc GetValue(DataKey) returns (DataResponse) {}
 }
 
+// RegisterInfo contains the information needed to register an account
 message RegisterInfo {
+    // The name for the account, must be unique
     string name = 1;
 }
 
+// RegisterResponse is the response information from registering an account
 message RegisterResponse {
+    // The error value should only be populated if success is false
     bool success = 1;
     string error = 2;
 }
 
+// DataKeyValue represents a simple key value pair to assign to an account
 message DataKeyValue {
+    // The account to assign the new key value pair to
     string account = 1;
+    
+    // The key value pair to assign
     string key = 2;
     string value = 3;
 }
 
+// Response is a simple response with success and error
 message Response {
+    // error should only be populated if success is false
     bool success = 1;
     string error = 2;
 }
 
+// DataKey describes a simple key value with an account, for fetching
 message DataKey {
+    // The account to fetch data for
     string account = 1;
+
+    // The key to fetch
     string key = 2;
 }
 
+// DataResponse describes a data fetch response
 message DataResponse {
+    // error should only be populated if success is false
     bool success = 1;
     string error = 2;
 
+    // The value of the key
     string value = 3;
 }