[SEA-NodeJS] feat(kernel): map the socketTimeout ConnectionOption onto the kernel

The kernel napi binding exposes `socketTimeoutMs` (kernel
`HttpConfig::request_timeout` / reqwest `Client::timeout`, kernel #129).
Map the public `socketTimeout` ConnectionOption (ms) onto it in
`buildKernelHttpOptions`, so the per-connection read timeout works on the
kernel backend just like the Thrift path.

Only a positive value is forwarded: `socketTimeout: 0` means "disabled /
wait indefinitely" on Thrift, but forwarding `0` would make reqwest time
out immediately, so it is omitted (kernel keeps its large default).

Verified directly against a live serverless warehouse: `socketTimeout: 1`
makes a SEA request time out.

Co-authored-by: Isaac

Author: msrathore-db

lib/kernel/KernelAuth.ts

@@ -171,6 +171,7 @@ export interface KernelTlsOptions {
  */
 export interface KernelHttpOptions {
   customHeaders?: Array<{ name: string; value: string }>;
+  socketTimeoutMs?: number;
 }
 
 /**
@@ -392,7 +393,7 @@ function validateHeaderToken(kind: 'name' | 'value', headerName: string, token:
 }
 
 export function buildKernelHttpOptions(options: ConnectionOptions): KernelHttpOptions {
-  const { customHeaders, userAgentEntry } = options;
+  const { customHeaders, userAgentEntry, socketTimeout } = options;
 
   const headers: Array<{ name: string; value: string }> = [];
   if (customHeaders) {
@@ -414,7 +415,18 @@ export function buildKernelHttpOptions(options: ConnectionOptions): KernelHttpOp
   // Python connector's unconditional `base_headers` append.
   headers.push({ name: 'User-Agent', value: buildUserAgentString(userAgentEntry) });
 
-  return { customHeaders: headers };
+  const http: KernelHttpOptions = { customHeaders: headers };
+  // Per-connection socket read timeout (ms). The public `socketTimeout`
+  // ConnectionOption maps onto the kernel napi `socketTimeoutMs`
+  // (kernel `HttpConfig::request_timeout` / reqwest `Client::timeout`).
+  // Only forward a POSITIVE value: `socketTimeout: 0` means "disabled / wait
+  // indefinitely" on the Thrift path, but forwarding `0` would make reqwest
+  // time out immediately, so we omit it and let the kernel keep its (large)
+  // default — preserving the "effectively no idle timeout" semantics.
+  if (typeof socketTimeout === 'number' && socketTimeout > 0) {
+    http.socketTimeoutMs = socketTimeout;
+  }
+  return http;
 }
 
 /**