[AI] Unify code-interpreter streaming rendering and fix assistant width jitter (#19235)

closes
https://discord.com/channels/1130383047699738754/1480991390782455838

- Use data-code-execution as the streaming source of truth and hide
duplicate code-interpreter tool parts (including tool-execute_tool
wrappers).
- Ensure wrapped execute_tool code-interpreter outputs still render
correctly after refetch.
- Gate code-interpreter server behavior by enablement state and keep
assistant messages full-width to avoid streaming vs completed width
shifts.

Co-authored-by: Félix Malfait <felix.malfait@gmail.com>

packages/twenty-front/src/modules/ai/utils/isCodeInterpreterToolPart.ts

@@ -0,0 +1,22 @@
+import { isToolUIPart } from 'ai';
+import { type ExtendedUIMessagePart } from 'twenty-shared/ai';
+
+export const isCodeInterpreterToolPart = (
+  part: ExtendedUIMessagePart,
+): boolean => {
+  if (!isToolUIPart(part)) {
+    return false;
+  }
+
+  if (part.type === 'tool-code_interpreter') {
+    return true;
+  }
+
+  if (part.type === 'tool-execute_tool') {
+    const input = part.input as Record<string, unknown> | null | undefined;
+
+    return input?.toolName === 'code_interpreter';
+  }
+
+  return false;
+};