T5.7.1: Unify Verdict enum into wzp_relay::verdict, drop RepeatAbusive variant

crates/wzp-relay/src/audio_scorer.rs

@@ -9,6 +9,8 @@ use std::time::{Duration, Instant};
 
 use wzp_proto::{CodecId, MediaHeader, MediaType};
 
+use crate::verdict::Verdict;
+
 /// Maximum samples kept in rolling windows.
 const MAX_IAT_SAMPLES: usize = 200;
 const MAX_SIZE_SAMPLES: usize = 200;
@@ -23,17 +25,6 @@ const BITRATE_WINDOW_SECS: u64 = 30;
 // Number of payload-size histogram bins.
 // (SIZE_BINS reserved for future histogram-based bimodality)
 
-/// Verdict produced by the scorer after sufficient observation.
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub enum Verdict {
-    /// No suspicion. Score ≥ 0.7.
-    Legitimate,
-    /// Tightened monitoring. 0.3 ≤ score < 0.7.
-    Suspect,
-    /// High confidence of abuse. Score < 0.3.
-    Abusive,
-}
-
 /// Audio-specific behavioural scorer (Tier F).
 pub struct AudioScorer {
     /// Rolling inter-arrival times.

crates/wzp-relay/src/lib.rs

@@ -26,6 +26,7 @@ pub mod route;
 pub mod session_mgr;
 pub mod signal_hub;
 pub mod trunk;
+pub mod verdict;
 pub mod ws;
 
 pub use config::RelayConfig;

crates/wzp-relay/src/response_policy.rs

@@ -11,18 +11,7 @@ use std::time::{Duration, Instant};
 
 use wzp_proto::packet::{HangupReason, ViolationCode};
 
-/// Conformance verdict produced by Tier F scoring.
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub enum Verdict {
-    /// No suspicion.
-    Legitimate,
-    /// Tightened monitoring.
-    Suspect,
-    /// High confidence of abuse — close session.
-    Abusive,
-    /// Already abusive once in the last 24 h — escalate to block.
-    RepeatAbusive,
-}
+use crate::verdict::Verdict;
 
 /// Enforcement action recommended by the response policy.
 #[derive(Clone, Debug, PartialEq, Eq)]
@@ -84,7 +73,6 @@ impl ResponsePolicy {
                     }
                 }
             }
-            Verdict::RepeatAbusive => Action::Block,
         }
     }
 

crates/wzp-relay/src/verdict.rs

@@ -0,0 +1,12 @@
+//! Shared conformance verdict enum (Tier F / Tier G).
+
+/// Verdict produced by Tier F scoring and consumed by Tier G response policy.
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum Verdict {
+    /// No suspicion. Score ≥ 0.7.
+    Legitimate,
+    /// Tightened monitoring. 0.3 ≤ score < 0.7.
+    Suspect,
+    /// High confidence of abuse. Score < 0.3.
+    Abusive,
+}