feat: add support for GLM 5 (if) (#123)

(cherry picked from commit e26d65aa55726e330f6806aa1abfe05ac6801619)

Co-authored-by: zx <me@char.moe>

open-sse/config/providerModels.js

@@ -53,6 +53,7 @@ export const PROVIDER_MODELS = {
     { id: "minimax-m2.1", name: "MiniMax M2.1" },
     { id: "glm-4.7", name: "GLM 4.7" },
     { id: "glm-4.6", name: "GLM 4.6" },
+    { id: "glm-5", name: "GLM 5" },
   ],
   ag: [  // Antigravity - special case: models call different backends
     { id: "claude-opus-4-6-thinking", name: "Claude Opus 4.6 Thinking" },