adds healthz path back to openapi,testing

openapi.yaml

@@ -16,6 +16,26 @@ schemes:
   - "http"
 
 paths:
+  /healthz:
+    get:
+      summary: "Health check endpoint to verify if the server is alive."
+      description: "Returns a simple status message to indicate that the server is running."
+      operationId: "healthCheck"
+      produces:
+        - "application/json"
+      responses:
+        200:
+          description: "Server is alive and responding."
+          schema:
+            type: object
+            properties:
+              status:
+                type: string
+                example: "alive"
+        default:
+          description: "Unexpected error"
+          schema:
+            $ref: "#/definitions/ErrorResponse"
 
   /chat:
     post: