[AI] Collapse NativeToolBinder to a single bind() entry (#20051)

The binder doesnt need an agent or full tool context -- just a model and
options.
Single `bind(model, options)` entry!


Builds on #20022.

packages/twenty-server/src/engine/metadata-modules/ai/ai-agent-execution/services/agent-async-executor.service.ts

@@ -150,7 +150,6 @@ export class AgentAsyncExecutorService {
           rolePermissionConfig: effectiveRoleConfig ?? { unionOf: [] },
           authContext,
           actorContext,
-          agent: agent as unknown as ToolProviderContext['agent'],
           userId:
             isDefined(authContext) && isUserAuthContext(authContext)
               ? authContext.user.id
@@ -169,8 +168,10 @@ export class AgentAsyncExecutorService {
           },
         );
 
-        const nativeTools =
-          await this.nativeToolBinder.bind(toolProviderContext);
+        const nativeTools = this.nativeToolBinder.bind(registeredModel, {
+          webSearchEnabled:
+            agent.modelConfiguration?.webSearch?.enabled === true,
+        });
 
         tools = {
           ...registryTools,

packages/twenty-server/src/engine/metadata-modules/ai/ai-chat/services/chat-execution.service.ts

@@ -157,10 +157,9 @@ export class ChatExecutionService {
       registeredModel.modelId,
     );
 
-    const nativeModelTools = this.nativeToolBinder.bindForModel(
-      registeredModel,
-      { webSearchEnabled: true },
-    );
+    const nativeModelTools = this.nativeToolBinder.bind(registeredModel, {
+      webSearchEnabled: true,
+    });
 
     // Tools the model can call directly: preloaded registry tools (already
     // serialized by the hydrator) plus SDK-native tools (opaque, never

packages/twenty-server/src/engine/metadata-modules/ai/ai-models/services/ai-model-config.service.ts

@@ -79,15 +79,6 @@ export class AiModelConfigService {
     return tools;
   }
 
-  getNativeModelToolsForAgent(
-    model: RegisteredAiModel,
-    agent: FlatAgentWithRoleId,
-  ): ToolSet {
-    return this.getNativeModelTools(model, {
-      webSearchEnabled: agent.modelConfiguration?.webSearch?.enabled === true,
-    });
-  }
-
   private getXaiProviderOptions(agent: FlatAgentWithRoleId): ProviderOptions {
     if (
       !agent.modelConfiguration ||