fix(web): make fallback model visible in model selector

packages/app/src/context/local.tsx

@@ -147,6 +147,11 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
       if (validModel(model)) return model
     }
 
+    createEffect(() => {
+      const cfg = configuredModel()
+      if (cfg) models.setVisibility(cfg, true)
+    })
+
     const recentModel = () => {
       for (const item of models.recent.list()) {
         if (validModel(item)) return item
@@ -171,6 +176,11 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
 
     const fallback = createMemo<ModelKey | undefined>(() => configuredModel() ?? recentModel() ?? defaultModel())
 
+    createEffect(() => {
+      const model = fallback()
+      if (model) models.setVisibility(model, true)
+    })
+
     const agent = {
       list,
       current() {

packages/opencode/src/plugin/codex.ts

@@ -374,6 +374,7 @@ export async function CodexAuthPlugin(input: PluginInput): Promise<Hooks> {
           "gpt-5.3-codex",
           "gpt-5.4",
           "gpt-5.4-mini",
+          "gpt-5.5",
         ])
         for (const [modelId, model] of Object.entries(provider.models)) {
           if (modelId.includes("codex")) continue