style: apply rustfmt across all crates and demos

Consistent formatting pass: line wrapping, import sorting, trailing
whitespace removal, let-chain indentation, merged derive attributes,
and unsafe block reformatting.

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

demos/rtx-drugbinder-demo/src/lib.rs

@@ -29,8 +29,9 @@ pub mod protein_encoder;
 pub mod sample_data;
 
 use drugbinder_shared::{
-    BindingPrediction, BindingPredictionRequest, GenerationRequest, GenerationResult, Molecule, MoleculeInput, PredictionConfig, ProteinTarget, ScreeningHit,
-    ScreeningRequest, ScreeningResult, TargetInput,
+    BindingPrediction, BindingPredictionRequest, GenerationRequest, GenerationResult, Molecule,
+    MoleculeInput, PredictionConfig, ProteinTarget, ScreeningHit, ScreeningRequest,
+    ScreeningResult, TargetInput,
 };
 use thiserror::Error;
 
@@ -137,9 +138,10 @@ pub async fn screen_molecules(
 
         // Apply affinity threshold
         if let Some(min_aff) = request.config.min_affinity
-            && prediction.affinity.pkd < min_aff {
-                continue;
-            }
+            && prediction.affinity.pkd < min_aff
+        {
+            continue;
+        }
 
         hits.push(ScreeningHit {
             rank: 0,