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ARCHITECTURE.md

@@ -106,7 +106,7 @@ flowchart TB
     end
 
     subgraph SERIAL["🔌 PHYSICAL TRANSPORT BUS"]
-        UART["W3C navigator.serial (115,200 Baud)<br/>ASCII Frame: $HR,SPO2,SYS,DIA,TEMP*CRC\n"]
+        UART["W3C navigator.serial (115,200 Baud)<br/>ASCII Frame: $HR,SPO2,SYS,DIA,TEMP*CRC"]
     end
 
     subgraph CLIENT["💻 CLINICAL BROWSER CLIENT (PRIMARY PLANE: ZERO-CLOUD)"]
@@ -115,33 +115,43 @@ flowchart TB
         PRE["StandardScaler & Feature Engineering<br/>z_j = (x_j - μ_j) / σ_j + Risk_Severity"]
         
         subgraph ENSEMBLE["5-Model Soft-Voting Ensemble (< 20 µs Latency | 0.0 KB Egress)"]
+            direction TB
             RF["Random Forest (w=0.25)"]
             MLP["Small-NN MLP (w=0.25)"]
             LOG["Logistic Reg (w=0.20)"]
             SVM["Linear SVM (w=0.15)"]
             KNN["KNN k=5 (w=0.15)"]
+            VOTE["Calibrated Soft-Voting Arbitration<br/>P(Class_c | X) = Σ(w_i · P_i) / Σ(w_i)"]
+            
+            RF --> VOTE
+            MLP --> VOTE
+            LOG --> VOTE
+            SVM --> VOTE
+            KNN --> VOTE
         end
         
         DIAG["Real-Time Diagnostic Decision Matrix<br/>Healthy · Hypertension · Heart Disease · Asthma · Diabetes"]
+        
+        PRE --> RF
+        PRE --> MLP
+        PRE --> LOG
+        PRE --> SVM
+        PRE --> KNN
+        VOTE --> DIAG
     end
 
     subgraph CLOUD["☁️ SECONDARY CLOUD BACKEND (Hugging Face Spaces · Docker / FastAPI)"]
-        REST["FastAPI Gateway (/predict, /ws/feed)"]
-        MLOPS["MLOps Automated Retrain Engine<br/>Batch CSV Ingest & Alias Normalization"]
-        REG["Model Registry (5 .pkl Estimators)"]
-        C99["AST C99 Code Exporter (/export_tinyml)<br/>Zero-Malloc model.h Generator"]
+        direction LR
+        REST["FastAPI Gateway (/predict, /ws/feed)"] --> MLOPS["MLOps Automated Retrain Engine<br/>Batch CSV Ingest & Alias Normalization"]
+        MLOPS --> REG["Model Registry (5 .pkl Estimators)"]
+        REG --> C99["AST C99 Code Exporter (/export_tinyml)<br/>Zero-Malloc model.h Generator"]
     end
 
     HW -->|UART Serial Stream| UART
     UART --> OSC
     UART --> PRE
-    PRE --> ENSEMBLE
-    ENSEMBLE --> DIAG
     
-    CLIENT -.->|Optional Telemetry Sync & WS Feed| REST
-    REST --> MLOPS
-    MLOPS --> REG
-    REG --> C99
+    DIAG -.->|Optional Telemetry Sync & WS Feed| REST
 
     classDef primary fill:#FBFBFA,stroke:#141413,stroke-width:2px,color:#141413;
     classDef accent fill:#9F2F2D,stroke:#9F2F2D,stroke-width:2px,color:#ffffff;
@@ -151,7 +161,7 @@ flowchart TB
     class HW primary;
     class CLIENT edgeBox;
     class CLOUD cloudBox;
-    class DIAG,C99 accent;
+    class DIAG,C99,VOTE accent;
 ```
 
 > [!IMPORTANT]