style(engine): rustfmt — wrap long lines in bridge_tcp test + chunk_context gate (gate fixup)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

server/src/atlas/chunk_context.rs

@@ -235,10 +235,10 @@ pub fn derive_chunk_context(
         let wavelength_i = (meander_wavelength_m as i32).max(10);
         let amplitude_max = (wavelength_i / 4).max(3);
         let edge_max = (channel_width / 2).max(2) + 3; // half-width + max edge jitter
-        // Floor: the BraidedDelta belt reaches anchor ±(32 thread-centre + 4
-        // thread-half) before warp regardless of wavelength — the band must
-        // cover it even at the short-wavelength extreme (costs ≤4 m of extra
-        // gate generosity for the other families).
+                                                       // Floor: the BraidedDelta belt reaches anchor ±(32 thread-centre + 4
+                                                       // thread-half) before warp regardless of wavelength — the band must
+                                                       // cover it even at the short-wavelength extreme (costs ≤4 m of extra
+                                                       // gate generosity for the other families).
         let reach = (amplitude_max + edge_max + LEVEE_BAND_MAX_M).max(32 + 4) + WARP_BOUND_M;
         let cross_lo = cross_chunk * CHUNK_M;
         let cross_hi = cross_lo + CHUNK_M - 1;

server/tests/bridge_tcp.rs

@@ -222,7 +222,9 @@ fn tcp_bridge_eof_mid_frame_escalates_to_disconnected() {
     // Client: write 2 of the 4 length-prefix bytes, then die.
     use std::io::Write;
     let mut stream = TcpStream::connect(server_addr).expect("failed to connect");
-    stream.write_all(&[0x00, 0x00]).expect("partial write failed");
+    stream
+        .write_all(&[0x00, 0x00])
+        .expect("partial write failed");
     stream.flush().expect("flush failed");
     thread::sleep(std::time::Duration::from_millis(50));
     drop(stream);