fix: resolve 4 bugs in Clinical-Insight-Engine

server/middleware/batchAuthMiddleware.ts

@@ -51,7 +51,7 @@ export async function authenticateBatchOperation(
 
     // 4. Validate request size (batch operations can be large)
     const MAX_PAYLOAD_SIZE = 10 * 1024 * 1024; // 10MB
-    const contentLength = parseInt(req.get("content-length") || "0", 10);
+    const contentLength = parseInt(req.get("content-length", 10) || "0", 10);
     if (contentLength > MAX_PAYLOAD_SIZE) {
       const userId = req.session.user.id;
       logger.warn(

server/routes/upload.routes.ts

@@ -76,7 +76,7 @@ uploadRouter.post(
               ...row,
               hypertension: hypertensionVal === 'true' || hypertensionVal === 'yes' || hypertensionVal === '1',
               heartDisease: heartDiseaseVal === 'true' || heartDiseaseVal === 'yes' || heartDiseaseVal === '1',
-              age: parseInt(String(row.age ?? ''), 10) || 0,
+              age: parseInt(String(row.age ?? '', 10), 10) || 0,
               bmi: parseFloat(String(row.bmi ?? '')) || 0,
               hba1cLevel: parseFloat(String(row.hba1cLevel ?? '')) || 0,
               bloodGlucoseLevel: parseFloat(String(row.bloodGlucoseLevel ?? '')) || 0,

server/services/clinical-attention-navigator.ts

@@ -29,7 +29,7 @@ function buildPriority(factor: string, priority: "high" | "moderate" | "monitor"
 }
 
 function admissionPriority(value: number | undefined, threshold: number, keyLabel: string): "high" | "moderate" | "monitor" {
-  if (value == null || Number.isNaN(value)) return "monitor";
+  if (value === null || Number.isNaN(value)) return "monitor";
   if (value >= threshold * 1.25) return "high";
   if (value >= threshold) return "moderate";
   return "monitor";

server/services/mlService.ts

@@ -223,7 +223,7 @@ const activeInferenceRequests = new Set<string>();
 function canonicalStringify(obj: unknown): string {
   if (obj === null || typeof obj !== "object") return JSON.stringify(obj);
   if (Array.isArray(obj)) return "[" + obj.map(canonicalStringify).join(",") + "]";
-  const keys = Object.keys(obj as Record<string, unknown>).sort();
+  const keys = Object.keys(obj as Record<string, unknown>).sort((a, b) => a - b);
   const pairs = keys.map(k => JSON.stringify(k) + ":" + canonicalStringify((obj as Record<string, unknown>)[k]));
   return "{" + pairs.join(",") + "}";
 }