fix(network-monitor): add new faucet fields

bin/network-monitor/src/faucet.rs

@@ -43,24 +43,16 @@ pub struct FaucetTestDetails {
 
 /// Response from the faucet's `/pow` endpoint.
 ///
-/// `deny_unknown_fields` makes the monitor flag schema drift loudly — a new field on the faucet
-/// response will fail deserialization and surface in the error message, instead of being
-/// silently dropped.
+/// Only the fields the monitor uses are declared. Other fields, including ones added by newer
+/// faucet releases, are ignored.
 #[derive(Debug, Deserialize)]
-#[serde(deny_unknown_fields)]
 struct PowChallengeResponse {
     challenge: String,
     target: u64,
-    #[expect(
-        dead_code,
-        reason = "Part of the API response, unused but required for `deny_unknown_fields`"
-    )]
-    timestamp: u64,
 }
 
 /// Response from the faucet's `/get_tokens` endpoint.
 #[derive(Debug, Deserialize)]
-#[serde(deny_unknown_fields)]
 pub(crate) struct GetTokensResponse {
     /// The ID of the note that holds the minted tokens.
     #[serde(deserialize_with = "deserialize_note_id")]
@@ -75,18 +67,19 @@ fn deserialize_note_id<'de, D: Deserializer<'de>>(deserializer: D) -> Result<Not
 
 /// Response from the faucet's `/get_metadata` endpoint.
 ///
-/// Field set mirrors the faucet's `GetMetadataResponse` in
-/// `bin/faucet/src/api/get_metadata.rs` on the `next` branch. Keep these in sync; the
-/// `deny_unknown_fields` attribute will surface any drift loudly.
+/// Mirrors the faucet's `GetMetadataResponse`. Unknown fields are ignored so that a faucet release
+/// adding a field does not break the faucet check.
 #[derive(Clone, Debug, Serialize, Deserialize)]
-#[serde(deny_unknown_fields)]
 pub struct GetMetadataResponse {
     pub version: String,
     pub id: String,
     pub decimals: u8,
     pub explorer_url: Option<String>,
     pub pow_load_difficulty: u64,
     pub base_amount: u64,
+    /// The token amounts, in base units, that the faucet offers.
+    #[serde(default)]
+    pub token_amounts: Vec<u64>,
     /// The remaining balance of the funding account in base units. It is `None` when the funding
     /// service did not answer.
     pub balance: Option<u64>,
@@ -317,9 +310,8 @@ async fn read_success_body(response: reqwest::Response) -> anyhow::Result<String
 }
 
 /// Deserialize a faucet response using [`serde_path_to_error`] so that the failing JSON path (e.g.
-/// `balance`, `explorer_url`) is included in the error message. Combined with
-/// `#[serde(deny_unknown_fields)]` on each response type, this means renamed, removed, or newly
-/// added fields all surface a precise field name rather than a generic "unexpected response".
+/// `balance`, `explorer_url`) is included in the error message. A missing or mistyped field
+/// surfaces its name rather than a generic "unexpected response".
 fn parse_faucet_response<T>(body: &str) -> anyhow::Result<T>
 where
     T: for<'de> Deserialize<'de>,

bin/network-monitor/src/view/mod.rs

@@ -407,6 +407,7 @@ mod tests {
                 explorer_url: Some("https://explorer.example".to_string()),
                 pow_load_difficulty: 4,
                 base_amount: 100,
+                token_amounts: vec![100, 500],
                 balance: Some(1_000_000),
             }),
         };
@@ -435,6 +436,7 @@ mod tests {
                 explorer_url: None,
                 pow_load_difficulty: 4,
                 base_amount: 100,
+                token_amounts: vec![100, 500],
                 balance: None,
             }),
         };