Method handleCopy

src/network/WebDAVHandler.cpp:559–650

// ── COPY ─────────────────────────────────────────────────────────────────────

void WebDAVHandler::handleCopy(WebServer& s) {
  String srcPath = getRequestPath(s);
  String dstPath = getDestinationPath(s);
  bool overwrite = getOverwrite(s);

  LOG_DBG("DAV", "COPY %s -> %s (overwrite=%d)", srcPath.c_str(), dstPath.c_str(), overwrite);

  if (isProtectedPath(srcPath) || isProtectedPath(dstPath)) {
    s.send(403, "text/plain", "Forbidden");
    return;
  }

  if (dstPath.isEmpty()) {
    s.send(400, "text/plain", "Missing Destination header");
    return;
  }

  if (srcPath == dstPath) {
    s.send(204);
    return;
  }

  if (!Storage.exists(srcPath.c_str())) {
    s.send(404, "text/plain", "Source not found");
    return;
  }

  HalFile srcFile = Storage.open(srcPath.c_str());
  if (!srcFile) {
    s.send(500, "text/plain", "Failed to open source");
    return;
  }

  if (srcFile.isDirectory()) {
    srcFile.close();
    s.send(403, "text/plain", "Cannot copy directories");
    return;
  }

  // Check destination parent exists
  int lastSlash = dstPath.lastIndexOf('/');
  if (lastSlash > 0) {
    String parentPath = dstPath.substring(0, lastSlash);
    if (!parentPath.isEmpty() && !Storage.exists(parentPath.c_str())) {
      srcFile.close();
      s.send(409, "text/plain", "Destination parent does not exist");
      return;
    }
  }

  bool dstExists = Storage.exists(dstPath.c_str());
  if (dstExists && !overwrite) {
    srcFile.close();
    s.send(412, "text/plain", "Destination exists and Overwrite is F");
    return;
  }

  if (dstExists) {