Publish harness and TUI open-source

initial sync from the monorepo

crates/codegen/xai-grok-sampler/tests/support/mod.rs

@@ -0,0 +1,32 @@
+//! Sampler-specific helpers for the shared-HTTP-client integration binaries:
+//! config + request drivers for real `SamplingClient`s. The generic
+//! connection-counting server lives in `xai_grok_test_support`.
+
+use std::sync::Arc;
+
+use xai_grok_sampler::{SamplerConfig, SamplingClient};
+use xai_grok_sampling_types::{ContentPart, ConversationItem, ConversationRequest, UserItem};
+
+pub fn test_config(base_url: &str, api_key: &str) -> SamplerConfig {
+    SamplerConfig {
+        api_key: Some(api_key.to_string()),
+        base_url: base_url.to_string(),
+        model: "test-model".to_string(),
+        ..SamplerConfig::default()
+    }
+}
+
+/// Drive one POST through the client; the canned `{}` body is not a valid
+/// completion, but only the wire-level request matters here.
+pub async fn send_one(client: &SamplingClient) {
+    let request = ConversationRequest {
+        items: vec![ConversationItem::User(UserItem {
+            content: vec![ContentPart::Text {
+                text: Arc::<str>::from("hi"),
+            }],
+            ..Default::default()
+        })],
+        ..Default::default()
+    };
+    let _ = client.conversation(request).await;
+}