chore: 许可证由 GPL-2.0 修正为 AGPL-3.0-only 并补全第三方归属声明

src/rustdesk/NOTICE

@@ -0,0 +1,25 @@
+Third-Party Code Attribution
+=============================
+
+The source files in this directory contain code derived from the RustDesk
+project (https://github.com/rustdesk/rustdesk). They implement parts of the
+RustDesk peer/rendezvous protocol (the "hbbs / hbbr" wire protocol, NaCl
+cryptographic handshake and related helpers), as also indicated by comments
+such as "RustDesk-compatible" and "RustDesk wire format" within the files.
+
+Upstream work:
+  RustDesk - https://github.com/rustdesk/rustdesk
+  Copyright (C) the RustDesk contributors
+  Licensed under the GNU Affero General Public License v3.0 (AGPL-3.0-only)
+
+Modifications:
+  These files were ported, restructured, extended and otherwise modified for
+  One-KVM. Per sections 4 and 5 of the AGPL-3.0, the modified files carry
+  prominent notices stating that they were changed and the date of the
+  change, and they remain licensed under AGPL-3.0-only.
+
+The complete license text can be found in the LICENSE file at the repository
+root and at: https://www.gnu.org/licenses/agpl-3.0.en.html
+
+The corresponding source code of One-KVM is available at
+https://github.com/mofeng-git/One-KVM (see the release tags).