fix(types): use f64 for DecodePsbt fee field

Bitcoin Core returns the fee as a floating-point BTC value, not satoshis.
Change fee field from u64 to f64 and update conversion to use Amount::from_btc() instead of Amount::from_sat().

Affected versions: v17, v23, v24, v30

Author: deadmanoz

types/src/v17/raw_transactions/into.rs

@@ -124,7 +124,7 @@ impl DecodePsbt {
 
         let psbt =
             bitcoin::Psbt { unsigned_tx, version, xpub, proprietary, unknown, inputs, outputs };
-        let fee = self.fee.map(Amount::from_sat);
+        let fee = self.fee.map(Amount::from_btc).transpose().map_err(E::Fee)?;
 
         Ok(model::DecodePsbt { psbt, fee })
     }

types/src/v17/raw_transactions/mod.rs

@@ -143,7 +143,7 @@ pub struct DecodePsbt {
     /// Array of transaction outputs.
     pub outputs: Vec<PsbtOutput>,
     /// The transaction fee paid if all UTXOs slots in the PSBT have been filled.
-    pub fee: Option<u64>,
+    pub fee: Option<f64>,
 }
 
 /// An input in a partially signed Bitcoin transaction. Part of `decodepsbt`.

types/src/v23/raw_transactions/into.rs

@@ -67,7 +67,7 @@ impl DecodePsbt {
             inputs,
             outputs,
         };
-        let fee = self.fee.map(Amount::from_sat);
+        let fee = self.fee.map(Amount::from_btc).transpose().map_err(E::Fee)?;
 
         Ok(model::DecodePsbt { psbt, fee })
     }

types/src/v23/raw_transactions/mod.rs

@@ -47,7 +47,7 @@ pub struct DecodePsbt {
     /// Array of transaction outputs.
     pub outputs: Vec<PsbtOutput>,
     /// The transaction fee paid if all UTXOs slots in the PSBT have been filled.
-    pub fee: Option<u64>,
+    pub fee: Option<f64>,
 }
 
 /// An item from the global xpubs list. Part of `decodepsbt`.

types/src/v24/raw_transactions/into.rs

@@ -72,7 +72,7 @@ impl DecodePsbt {
             inputs,
             outputs,
         };
-        let fee = self.fee.map(Amount::from_sat);
+        let fee = self.fee.map(Amount::from_btc).transpose().map_err(E::Fee)?;
 
         Ok(model::DecodePsbt { psbt, fee })
     }

types/src/v24/raw_transactions/mod.rs

@@ -48,7 +48,7 @@ pub struct DecodePsbt {
     /// Array of transaction outputs.
     pub outputs: Vec<PsbtOutput>,
     /// The transaction fee paid if all UTXOs slots in the PSBT have been filled.
-    pub fee: Option<u64>,
+    pub fee: Option<f64>,
 }
 
 /// An item from the global xpubs list. Part of `decodepsbt`.

types/src/v30/raw_transactions/into.rs

@@ -72,7 +72,7 @@ impl DecodePsbt {
             inputs,
             outputs,
         };
-        let fee = self.fee.map(Amount::from_sat);
+        let fee = self.fee.map(Amount::from_btc).transpose().map_err(E::Fee)?;
 
         Ok(model::DecodePsbt { psbt, fee })
     }

types/src/v30/raw_transactions/mod.rs

@@ -48,7 +48,7 @@ pub struct DecodePsbt {
     /// Array of transaction outputs.
     pub outputs: Vec<PsbtOutput>,
     /// The transaction fee paid if all UTXOs slots in the PSBT have been filled.
-    pub fee: Option<u64>,
+    pub fee: Option<f64>,
 }
 
 /// An item from the global xpubs list. Part of `decodepsbt`.