refactor: move the xAI files to the upstream layout

CHANGELOG.md

@@ -1240,6 +1240,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   -- --check` and `python3 scripts/check_dto_vectors.py <languages>` guard the
   files and the codecs.
 
+- `aimux_providers::xai` follows the upstream `@ai-sdk/xai` file layout
+  (RFC-0046). The sub-modules `xai::convert`, `xai::responses::convert` and
+  `xai::responses::types` no longer exist; their public items are re-exported
+  instead. `xai::convert::supports_reasoning_effort` is now
+  `xai::supports_reasoning_effort`.
+  `xai::convert::resolve_provider_reference`, the items of
+  `xai::responses::convert` (`build_responses_request_body`,
+  `convert_to_xai_responses_input`, `prepare_responses_tools`,
+  `convert_xai_responses_usage`, `map_xai_responses_finish_reason`, ...) and
+  the items of `xai::responses::types` (`XaiResponsesResponse`,
+  `XaiResponsesUsage`, ...) are now at `xai::responses`. Exports at the crate
+  root and the `xai` module root are unchanged.
+
 - `aimux_providers::vertex` follows the upstream `@ai-sdk/google-vertex` file
   layout (RFC-0046). The sub-module `vertex::image` is no longer public; use
   `VertexImageModel`, re-exported at `aimux_providers::vertex`, instead of

aimux-providers/layout.toml

@@ -2554,7 +2554,7 @@ issue = 275
 
 [[xai.files]]
 upstream = "src/get-response-metadata.ts"
-rust = "xai/responses/mod.rs"
+rust = "xai/responses/responses_language_model.rs"
 status = "mapped"
 
 [xai.files.tests]
@@ -2593,56 +2593,56 @@ reason = "Realtime is out of scope (docs/aisdk-architecture-alignment.md, 本期
 
 [[xai.files]]
 upstream = "src/responses/convert-to-xai-responses-input.ts"
-rust = "xai/responses/convert.rs"
+rust = "xai/responses/convert_to_responses_input.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/responses/convert-xai-responses-usage.ts"
-rust = "xai/responses/convert.rs"
+rust = "xai/responses/convert_responses_usage.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/responses/map-xai-responses-finish-reason.ts"
-rust = "xai/responses/convert.rs"
+rust = "xai/responses/map_responses_finish_reason.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/responses/xai-responses-api.ts"
-rust = "xai/responses/types.rs"
+rust = "xai/responses/responses_api.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/responses/xai-responses-language-model-options.ts"
-rust = "xai/responses/convert.rs"
+rust = "xai/responses/responses_language_model_options.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/responses/xai-responses-language-model.ts"
-rust = "xai/responses/mod.rs"
+rust = "xai/responses/responses_language_model.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/responses/xai-responses-prepare-tools.ts"
-rust = "xai/responses/convert.rs"
+rust = "xai/responses/responses_prepare_tools.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/supports-reasoning-effort.ts"
-rust = "xai/convert.rs"
+rust = "xai/supports_reasoning_effort.rs"
 status = "mapped"
 
 [xai.files.tests]
@@ -2704,14 +2704,14 @@ reason = "Batch is out of scope (docs/aisdk-architecture-alignment.md, 本期范
 
 [[xai.files]]
 upstream = "src/xai-error.ts"
-rust = "xai/mod.rs"
+rust = "xai/error.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/xai-file-part-options.ts"
-rust = "xai/responses/convert.rs"
+rust = "xai/responses/convert_to_responses_input.rs"
 status = "mapped"
 
 [xai.files.tests]
@@ -2733,7 +2733,7 @@ issue = 275
 
 [[xai.files]]
 upstream = "src/xai-provider.ts"
-rust = "xai/mod.rs"
+rust = "xai/provider.rs"
 status = "mapped"
 
 [xai.files.tests]
@@ -2745,42 +2745,42 @@ sub-feature = [
 
 [[xai.files]]
 upstream = "src/xai-speech-model-options.ts"
-rust = "xai/speech.rs"
+rust = "xai/speech_model.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/xai-speech-model.ts"
-rust = "xai/speech.rs"
+rust = "xai/speech_model.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/xai-transcription-model-options.ts"
-rust = "xai/transcription.rs"
+rust = "xai/transcription_model.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/xai-transcription-model.ts"
-rust = "xai/transcription.rs"
+rust = "xai/transcription_model.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/xai-video-model-options.ts"
-rust = "xai/video.rs"
+rust = "xai/video_model.rs"
 status = "mapped"
 
 [xai.files.tests]
 
 [[xai.files]]
 upstream = "src/xai-video-model.ts"
-rust = "xai/video.rs"
+rust = "xai/video_model.rs"
 status = "mapped"
 
 [xai.files.tests]

aimux-providers/src/openai/responses/responses_language_model.rs

@@ -1840,7 +1840,7 @@ fn annotation_source(annotation: &Value, provider_key: &str) -> Result<Source, A
 /// Generate a unique source ID for streaming annotation sources.
 ///
 /// Uses a process-wide atomic counter — consistent with the xAI Responses
-/// provider (`aimux-providers/src/xai/responses/mod.rs`). Upstream TS uses
+/// provider (`aimux-providers/src/xai/responses/responses_language_model.rs`). Upstream TS uses
 /// `generateId()` for the same purpose.
 fn generate_source_id() -> String {
     use std::sync::atomic::{AtomicU64, Ordering};