feat: remove codex support

apps/server/src/providers/provider-factory.ts

@@ -8,7 +8,6 @@
 
 import { BaseProvider } from "./base-provider.js";
 import { ClaudeProvider } from "./claude-provider.js";
-import { CodexProvider } from "./codex-provider.js";
 import type { InstallationStatus } from "./types.js";
 
 export class ProviderFactory {
@@ -21,12 +20,6 @@ export class ProviderFactory {
   static getProviderForModel(modelId: string): BaseProvider {
     const lowerModel = modelId.toLowerCase();
 
-    // OpenAI/Codex models (gpt-*)
-    // Note: o1/o3 models are not supported by Codex CLI
-    if (lowerModel.startsWith("gpt-")) {
-      return new CodexProvider();
-    }
-
     // Claude models (claude-*, opus, sonnet, haiku)
     if (
       lowerModel.startsWith("claude-") ||
@@ -56,7 +49,6 @@ export class ProviderFactory {
   static getAllProviders(): BaseProvider[] {
     return [
       new ClaudeProvider(),
-      new CodexProvider(),
       // Future providers...
     ];
   }
@@ -95,10 +87,6 @@ export class ProviderFactory {
       case "anthropic":
         return new ClaudeProvider();
 
-      case "codex":
-      case "openai":
-        return new CodexProvider();
-
       // Future providers:
       // case "cursor":
       //   return new CursorProvider();