style: apply nix fmt

hive-claude/src/driver.rs

@@ -58,7 +58,10 @@ impl Claude {
             })?;
 
         if let Some(mut stdin) = child.stdin.take() {
-            stdin.write_all(prompt.as_bytes()).await.map_err(Error::Stdin)?;
+            stdin
+                .write_all(prompt.as_bytes())
+                .await
+                .map_err(Error::Stdin)?;
             // Best-effort flush/close; claude sees EOF and starts the turn.
             stdin.shutdown().await.ok();
         }

hive-claude/src/policy.rs

@@ -41,7 +41,11 @@ impl CompactionPolicy for PercentPolicy {
         if self.percent == 0 {
             return false;
         }
-        let Some(window) = usage.context_window.or(self.default_window).filter(|&w| w > 0) else {
+        let Some(window) = usage
+            .context_window
+            .or(self.default_window)
+            .filter(|&w| w > 0)
+        else {
             return false;
         };
         usage.context_tokens.saturating_mul(100) >= u64::from(self.percent) * window

hive-claude/src/session.rs

@@ -4,7 +4,9 @@ use std::sync::Mutex;
 
 use serde_json::Value;
 
-use crate::{Attach, Claude, CompactionPolicy, Config, Error, Result, SessionStore, Sink, Telemetry};
+use crate::{
+    Attach, Claude, CompactionPolicy, Config, Error, Result, SessionStore, Sink, Telemetry,
+};
 
 /// A named claude session that outlives the model's context window by
 /// compacting itself. Bundles the three things a durable session needs: