fix: move 0:/etc/ => 0:/os/certs/

template/docs/syscalls.md

@@ -325,7 +325,7 @@ Provides a high-level `tls::https_fetch()` that handles socket creation, BearSSL
 ```cpp
 #include <tls/tls.hpp>
 
-// Load CA certificates (from 0:/etc/ca-certificates.crt)
+// Load CA certificates (from 0:/os/certs/ca-certificates.crt)
 tls::TrustAnchors tas = tls::load_trust_anchors();
 
 // Build HTTP request
@@ -349,7 +349,7 @@ if (n > 0) {
 
 ```cpp
 namespace tls {
-    // Load PEM CA bundle from 0:/etc/ca-certificates.crt
+    // Load PEM CA bundle from 0:/os/certs/ca-certificates.crt
     TrustAnchors load_trust_anchors();
 
     // High-level: DNS → socket → TLS → exchange → cleanup