Merge branch 'develop' into refactor/tts-api

将 188 行的 tts.ts 拆分为目录化结构：
- types.ts: 类型定义（TTSJob/TTSVoice/各请求响应等）
- jobs.ts: 全部 API 函数（8个）
- index.ts: 统一入口 re-export，保持 @/api/tts 路径向后兼容

主入口从 188 行减少到 31 行，按业务域清晰分层。

apps/api/app/services/ai_service.py

@@ -12,6 +12,7 @@
 
 from __future__ import annotations
 
+import json
 import logging
 from typing import Any, Dict, List, Optional
 

apps/web/src/api/tts.ts

@@ -1,188 +0,0 @@
-/**
- * TTS 语音合成 API
- * 对接后端 /api/v1/tts/* 端点
- *
- * 任务 3.14 新增
- */
-import apiClient from "./client"
-
-/* ── 类型定义 ──────────────────────────────────── */
-
-/** TTS 元数据（合成时附带的扩展信息） */
-export interface TTSMetadata {
-  /** 语音时长（秒） */
-  duration?: number
-  /** 采样率（Hz） */
-  sample_rate?: number
-  /** 语言 */
-  language?: string
-  /** 其他扩展字段 */
-  [key: string]: unknown
-}
-
-/** TTS 合成请求参数 */
-export interface TTSSynthesizeRequest {
-  text: string
-  voice_id?: string
-  output_name?: string
-  language?: string
-  speed?: number
-  voice_model?: string
-  voice_clone_profile_id?: string
-  format?: string
-  metadata?: TTSMetadata
-}
-
-/** TTS 合成创建响应 */
-export interface TTSSynthesizeResponse {
-  job_id: string
-  status: string
-  message: string
-}
-
-/** TTS 任务详情 */
-export interface TTSJob {
-  id: string
-  user_id: string
-  project_id: string | null
-  text: string
-  voice_id: string | null
-  voice_model: string | null
-  voice_clone_profile_id: string | null
-  language: string
-  speed: number
-  output_name: string | null
-  output_audio_url: string | null
-  output_format: string
-  duration_seconds: number | null
-  file_size_bytes: number | null
-  sample_rate: number | null
-  status: string
-  error_message: string | null
-  retry_count: number
-  max_retries: number
-  metadata_: TTSMetadata | null
-  created_at: string
-  updated_at: string
-}
-
-/** TTS 任务状态（轻量轮询用） */
-export interface TTSJobStatus {
-  id: string
-  status: string
-  output_audio_url: string | null
-  error_message: string | null
-  duration_seconds: number | null
-  retry_count: number
-}
-
-/** TTS 任务列表响应 */
-export interface TTSJobListResponse {
-  items: TTSJob[]
-  total: number
-  skip: number
-  limit: number
-}
-
-/** TTS 任务列表查询参数 */
-export interface TTSJobListParams {
-  status?: string
-  skip?: number
-  limit?: number
-}
-
-/* ── API 函数 ──────────────────────────────────── */
-
-/** 创建 TTS 合成任务 */
-export const synthesizeSpeech = async (
-  data: TTSSynthesizeRequest,
-): Promise<TTSSynthesizeResponse> => {
-  const response = await apiClient.post<TTSSynthesizeResponse>("/tts/synthesize", data)
-  return response.data
-}
-
-/** 获取 TTS 任务详情 */
-export const getTTSJob = async (jobId: string): Promise<TTSJob> => {
-  const response = await apiClient.get<TTSJob>(`/tts/jobs/${jobId}`)
-  return response.data
-}
-
-/** 获取 TTS 任务状态（轻量轮询） */
-export const getTTSJobStatus = async (jobId: string): Promise<TTSJobStatus> => {
-  const response = await apiClient.get<TTSJobStatus>(`/tts/jobs/${jobId}/status`)
-  return response.data
-}
-
-/** 获取 TTS 任务列表 */
-export const getTTSJobs = async (params?: TTSJobListParams): Promise<TTSJobListResponse> => {
-  const searchParams = new URLSearchParams()
-  if (params?.status) searchParams.set("status", params.status)
-  if (params?.skip !== undefined) searchParams.set("skip", String(params.skip))
-  if (params?.limit !== undefined) searchParams.set("limit", String(params.limit))
-  const qs = searchParams.toString()
-  const response = await apiClient.get<TTSJobListResponse>(`/tts/jobs${qs ? `?${qs}` : ""}`)
-  return response.data
-}
-
-/** 存为素材请求参数 */
-export interface SaveTtsToLibraryRequest {
-  name?: string
-  tag_ids?: string[]
-}
-
-/** 将 TTS 合成结果保存到配音库 */
-export const saveTtsToLibrary = async (
-  jobId: string,
-  data?: SaveTtsToLibraryRequest,
-): Promise<void> => {
-  await apiClient.post(`/tts/jobs/${jobId}/save-to-library`, data ?? {})
-}
-
-/** 删除 TTS 任务 */
-export const deleteTTSJob = async (jobId: string): Promise<void> => {
-  await apiClient.delete(`/tts/jobs/${jobId}`)
-}
-
-/* ── 音色列表 ──────────────────────────────────── */
-
-/** TTS 音色 */
-export interface TTSVoice {
-  id: string
-  name: string
-  /** 音色分类标签：male/female/young/service/news/emotion */
-  category?: string
-  /** 语言 */
-  language?: string
-  /** 试听 URL */
-  preview_url?: string
-  /** 描述 */
-  description?: string
-}
-
-/** 获取 TTS 音色列表 */
-export const getTtsVoices = async (): Promise<TTSVoice[]> => {
-  const response = await apiClient.get<TTSVoice[]>("/tts/voices")
-  return response.data
-}
-
-/* ── TTS 试听 ──────────────────────────────────── */
-
-/** TTS 试听请求参数 */
-export interface TTSPreviewRequest {
-  text: string
-  voice_id: string
-  speed?: number
-  pitch?: number
-}
-
-/** TTS 试听响应 */
-export interface TTSPreviewResponse {
-  audio_url: string
-  duration?: number
-}
-
-/** TTS 试听 */
-export const previewTts = async (data: TTSPreviewRequest): Promise<TTSPreviewResponse> => {
-  const response = await apiClient.post<TTSPreviewResponse>("/tts/preview", data)
-  return response.data
-}

apps/web/src/api/tts/index.ts

@@ -0,0 +1,31 @@
+/**
+ * TTS 语音合成 API — 目录化入口
+ * 保持与原 tts.ts 相同导出，向后兼容
+ */
+
+// 类型
+export type {
+  TTSMetadata,
+  TTSSynthesizeRequest,
+  TTSSynthesizeResponse,
+  TTSJob,
+  TTSJobStatus,
+  TTSJobListResponse,
+  TTSJobListParams,
+  SaveTtsToLibraryRequest,
+  TTSVoice,
+  TTSPreviewRequest,
+  TTSPreviewResponse,
+} from "./types"
+
+// API 函数
+export {
+  synthesizeSpeech,
+  getTTSJob,
+  getTTSJobStatus,
+  getTTSJobs,
+  saveTtsToLibrary,
+  deleteTTSJob,
+  getTtsVoices,
+  previewTts,
+} from "./jobs"

apps/web/src/api/tts/jobs.ts

@@ -0,0 +1,72 @@
+/**
+ * TTS 语音合成 API 函数
+ */
+import apiClient from "../client"
+import type {
+  TTSSynthesizeRequest,
+  TTSSynthesizeResponse,
+  TTSJob,
+  TTSJobStatus,
+  TTSJobListResponse,
+  TTSJobListParams,
+  SaveTtsToLibraryRequest,
+  TTSVoice,
+  TTSPreviewRequest,
+  TTSPreviewResponse,
+} from "./types"
+
+/** 创建 TTS 合成任务 */
+export const synthesizeSpeech = async (
+  data: TTSSynthesizeRequest,
+): Promise<TTSSynthesizeResponse> => {
+  const response = await apiClient.post<TTSSynthesizeResponse>("/tts/synthesize", data)
+  return response.data
+}
+
+/** 获取 TTS 任务详情 */
+export const getTTSJob = async (jobId: string): Promise<TTSJob> => {
+  const response = await apiClient.get<TTSJob>(`/tts/jobs/${jobId}`)
+  return response.data
+}
+
+/** 获取 TTS 任务状态（轻量轮询） */
+export const getTTSJobStatus = async (jobId: string): Promise<TTSJobStatus> => {
+  const response = await apiClient.get<TTSJobStatus>(`/tts/jobs/${jobId}/status`)
+  return response.data
+}
+
+/** 获取 TTS 任务列表 */
+export const getTTSJobs = async (params?: TTSJobListParams): Promise<TTSJobListResponse> => {
+  const searchParams = new URLSearchParams()
+  if (params?.status) searchParams.set("status", params.status)
+  if (params?.skip !== undefined) searchParams.set("skip", String(params.skip))
+  if (params?.limit !== undefined) searchParams.set("limit", String(params.limit))
+  const qs = searchParams.toString()
+  const response = await apiClient.get<TTSJobListResponse>(`/tts/jobs${qs ? `?${qs}` : ""}`)
+  return response.data
+}
+
+/** 将 TTS 合成结果保存到配音库 */
+export const saveTtsToLibrary = async (
+  jobId: string,
+  data?: SaveTtsToLibraryRequest,
+): Promise<void> => {
+  await apiClient.post(`/tts/jobs/${jobId}/save-to-library`, data ?? {})
+}
+
+/** 删除 TTS 任务 */
+export const deleteTTSJob = async (jobId: string): Promise<void> => {
+  await apiClient.delete(`/tts/jobs/${jobId}`)
+}
+
+/** 获取 TTS 音色列表 */
+export const getTtsVoices = async (): Promise<TTSVoice[]> => {
+  const response = await apiClient.get<TTSVoice[]>("/tts/voices")
+  return response.data
+}
+
+/** TTS 试听 */
+export const previewTts = async (data: TTSPreviewRequest): Promise<TTSPreviewResponse> => {
+  const response = await apiClient.post<TTSPreviewResponse>("/tts/preview", data)
+  return response.data
+}

apps/web/src/api/tts/types.ts

@@ -0,0 +1,112 @@
+/**
+ * TTS 语音合成类型定义
+ */
+
+/** TTS 元数据 */
+export interface TTSMetadata {
+  duration?: number
+  sample_rate?: number
+  language?: string
+  [key: string]: unknown
+}
+
+/** TTS 合成请求参数 */
+export interface TTSSynthesizeRequest {
+  text: string
+  voice_id?: string
+  output_name?: string
+  language?: string
+  speed?: number
+  voice_model?: string
+  voice_clone_profile_id?: string
+  format?: string
+  metadata?: TTSMetadata
+}
+
+/** TTS 合成创建响应 */
+export interface TTSSynthesizeResponse {
+  job_id: string
+  status: string
+  message: string
+}
+
+/** TTS 任务详情 */
+export interface TTSJob {
+  id: string
+  user_id: string
+  project_id: string | null
+  text: string
+  voice_id: string | null
+  voice_model: string | null
+  voice_clone_profile_id: string | null
+  language: string
+  speed: number
+  output_name: string | null
+  output_audio_url: string | null
+  output_format: string
+  duration_seconds: number | null
+  file_size_bytes: number | null
+  sample_rate: number | null
+  status: string
+  error_message: string | null
+  retry_count: number
+  max_retries: number
+  metadata_: TTSMetadata | null
+  created_at: string
+  updated_at: string
+}
+
+/** TTS 任务状态（轻量轮询用） */
+export interface TTSJobStatus {
+  id: string
+  status: string
+  output_audio_url: string | null
+  error_message: string | null
+  duration_seconds: number | null
+  retry_count: number
+}
+
+/** TTS 任务列表响应 */
+export interface TTSJobListResponse {
+  items: TTSJob[]
+  total: number
+  skip: number
+  limit: number
+}
+
+/** TTS 任务列表查询参数 */
+export interface TTSJobListParams {
+  status?: string
+  skip?: number
+  limit?: number
+}
+
+/** 存为素材请求参数 */
+export interface SaveTtsToLibraryRequest {
+  name?: string
+  tag_ids?: string[]
+}
+
+/** TTS 音色 */
+export interface TTSVoice {
+  id: string
+  name: string
+  category?: string
+  language?: string
+  preview_url?: string
+  description?: string
+}
+
+/** TTS 试听请求参数 */
+export interface TTSPreviewRequest {
+  text: string
+  voice_id: string
+  speed?: number
+  pitch?: number
+}
+
+/** TTS 试听响应 */
+export interface TTSPreviewResponse {
+  audio_url: string
+  duration?: number
+}

apps/worker/video_processing/chroma_key_engine.py

@@ -9,11 +9,12 @@
 from __future__ import annotations
 
 import logging
+from typing import Optional
 
-from packages.domain.chroma_key_config import CHROMA_KEY_PRESETS  # noqa: F401
-from packages.domain.chroma_key_config import apply_chroma_key_if_needed  # noqa: F401
 from packages.domain.chroma_key_config import (
+    CHROMA_KEY_PRESETS,
     ChromaKeyConfig,
+    apply_chroma_key_if_needed,
 )
 from packages.domain.chroma_key_config import (  # noqa: F401 — 向后兼容
     build_chromakey_filter as _build_chromakey_filter_base,

apps/worker/video_processing/color_grade_engine.py

@@ -195,3 +195,17 @@ class ColorGradeEngine:
 
 
 # ── 便捷函数 ──────────────────────────────────────────────────────────────────
+
+
+def get_preset_names() -> list[tuple[str, str]]:
+    """获取所有预设名称列表.
+
+    Returns:
+        [(preset_key, display_name), ...]
+    """
+    return [(key, PRESET_DISPLAY_NAMES.get(key, key)) for key in PRESET_PARAMS.keys()]
+
+
+def get_preset_params(preset: str) -> dict[str, float] | None:
+    """获取指定预设的参数."""
+    return PRESET_PARAMS.get(preset)

apps/worker/video_processing/ffmpeg_utils.py

@@ -22,9 +22,11 @@ from shared.ffmpeg_utils import (  # noqa: F401
 
 # xfade 转场纯逻辑已抽离到 domain 层，这里 re-export 保持向后兼容
 from packages.domain.xfade_builder import DEFAULT_TRANSITION_DURATION as _default_transition_duration_base  # noqa: F401
-from packages.domain.xfade_builder import SUPPORTED_TRANSITIONS  # noqa: F401
-from packages.domain.xfade_builder import XFADE_TRANSITION_MAP  # noqa: F401
-from packages.domain.xfade_builder import XFade_TRANSITION_NAMES  # noqa: F401
+from packages.domain.xfade_builder import (
+    SUPPORTED_TRANSITIONS,
+    XFADE_TRANSITION_MAP,
+    XFade_TRANSITION_NAMES,
+)
 from packages.domain.xfade_builder import build_xfade_filter_chain as _build_xfade_filter_chain_base
 from packages.domain.xfade_builder import chain_filters as _chain_filters_base
 from packages.domain.xfade_builder import resolve_xfade_transition as _resolve_xfade_transition_base

apps/worker/video_processing/noise_reduction_engine.py

@@ -9,21 +9,16 @@ from __future__ import annotations
 
 import logging
 
-# isort: off
 from packages.domain.noise_reduction_config import (
     NoiseReductionConfig,
-    NoiseReductionLevel,  # noqa: F401
+    NoiseReductionLevel,
 )
 from packages.domain.noise_reduction_config import (
     apply_noise_reduction_if_needed as _apply_noise_reduction_if_needed_base,
 )
-from packages.domain.noise_reduction_config import (
-    build_afftdn_filter as _build_afftdn_filter_base,
-)  # noqa: F401 — 向后兼容
+from packages.domain.noise_reduction_config import build_afftdn_filter as _build_afftdn_filter_base  # noqa: F401 — 向后兼容
 from packages.domain.noise_reduction_config import build_arnndn_filter as _build_arnndn_filter_base
 
-# isort: on
-
 logger = logging.getLogger(__name__)
 
 

apps/worker/video_processing/pip_engine.py

@@ -18,13 +18,22 @@ from pathlib import Path
 
 # 向后兼容：POSITION_BOTTOM_CENTER 也从 pip_config 再导出
 from packages.domain.pip_config import POSITION_BOTTOM_CENTER  # noqa: E402, F401
-from packages.domain.pip_config import PiPConfig  # noqa: F401
 from packages.domain.pip_config import (
     ANIMATION_FADE,
+    ANIMATION_SCALE,
     ANIMATION_SLIDE_BOTTOM,
     ANIMATION_SLIDE_LEFT,
     ANIMATION_SLIDE_RIGHT,
     ANIMATION_SLIDE_TOP,
+    POSITION_BOTTOM_LEFT,
+    POSITION_BOTTOM_RIGHT,
+    POSITION_CENTER,
+    POSITION_CENTER_LEFT,
+    POSITION_CENTER_RIGHT,
+    POSITION_TOP_CENTER,
+    POSITION_TOP_LEFT,
+    POSITION_TOP_RIGHT,
+    PiPConfig,
     PiPLayerConfig,
 )
 from packages.domain.pip_config import (  # noqa: F401 — 向后兼容：保留模块级导出

apps/worker/video_processing/render_subtitles.py

@@ -13,6 +13,9 @@ from pathlib import Path
 from typing import Any
 
 from packages.domain.ass_subtitle_builder import (
+    TITLE_MARGIN_BOTTOM,
+    TITLE_MARGIN_SIDE,
+    TITLE_MARGIN_TOP,
     build_ass_content,
 )
 from packages.domain.ass_subtitle_builder import build_ass_style as _build_ass_style_base  # noqa: F401 — 向后兼容

apps/worker/video_processing/sticker_engine.py

@@ -14,20 +14,16 @@ import logging
 from pathlib import Path
 from typing import Any
 
-# isort: off
 from packages.domain.sticker_config import (
-    POSITION_PRESETS,  # noqa: F401
-    STICKER_CATEGORIES,  # noqa: F401
+    POSITION_PRESETS,
+    STICKER_CATEGORIES,
     ImageStickerConfig,
     StickerOverlayResult,
     TextStickerConfig,
 )
-from packages.domain.sticker_config import (
-    get_sticker_categories as _get_sticker_categories_base,
-)  # noqa: F401  向后兼容导出
+from packages.domain.sticker_config import get_sticker_categories as _get_sticker_categories_base  # noqa: F401  向后兼容导出
 from packages.domain.sticker_config import parse_stickers_from_config as _parse_stickers_base
 from packages.domain.sticker_config import (
-    # isort: on
     resolve_sticker_position,
 )
 

apps/worker/video_processing/subtitle_render_engine.py

@@ -25,22 +25,28 @@ from __future__ import annotations
 
 import logging
 from pathlib import Path
-from typing import Any
 
 from video_processing.path_security import PathSecurityError, is_in_allowed_dirs, safe_resolve_path
 
 from packages.domain.subtitle_style import (
     ALLOWED_SUBTITLE_EXTENSIONS,
+    DEFAULT_COLOR,
+    DEFAULT_FONT,
     DEFAULT_FONT_SIZE,
+    DEFAULT_MAX_CHARS_PER_LINE,
     DEFAULT_POSITION,
+    DEFAULT_STROKE_COLOR,
+    DEFAULT_STROKE_WIDTH,
+    POSITION_ALIASES,
+    POSITION_ALIGNMENT,
     SubtitleSegment,
     SubtitleStyle,
 )
 from packages.domain.subtitle_style import escape_ass_text as _escape_ass_text  # noqa: F401  向后兼容导出
 from packages.domain.subtitle_style import format_ass_time as _format_ass_time
-from packages.domain.subtitle_style import hex_to_ass_bgr as _hex_to_ass_bgr  # noqa: F401
-from packages.domain.subtitle_style import hex_to_ass_color as _hex_to_ass_color  # noqa: F401
-from packages.domain.subtitle_style import opacity_to_ass_alpha as _opacity_to_ass_alpha  # noqa: F401
+from packages.domain.subtitle_style import hex_to_ass_bgr as _hex_to_ass_bgr
+from packages.domain.subtitle_style import hex_to_ass_color as _hex_to_ass_color
+from packages.domain.subtitle_style import opacity_to_ass_alpha as _opacity_to_ass_alpha
 from packages.domain.subtitle_style import wrap_text as _wrap_text
 
 logger = logging.getLogger(__name__)

apps/worker/video_processing/trim_engine.py

@@ -15,14 +15,16 @@ from __future__ import annotations
 import logging
 from typing import Any
 
-from packages.domain.trim_config import MIN_TRIM_DURATION  # noqa: F401
-from packages.domain.trim_config import extract_trim_from_clip_config  # noqa: F401
 from packages.domain.trim_config import (
+    MIN_TRIM_DURATION,
     TrimConfig,
     TrimSegment,
 )
 from packages.domain.trim_config import build_audio_trim_filter as _build_audio_trim_filter  # noqa: F401 — 向后兼容
 from packages.domain.trim_config import build_video_trim_filter as _build_video_trim_filter
+from packages.domain.trim_config import (
+    extract_trim_from_clip_config,
+)
 from packages.domain.trim_config import parse_segments_from_config as _parse_segments_from_config
 from packages.domain.trim_config import resolve_segments as _resolve_segments
 

apps/worker/video_processing/unified_render_service.py

@@ -53,6 +53,7 @@ from video_processing.tts_engine import TtsEngine
 from video_processing.watermark_engine import WatermarkConfig, WatermarkEngine
 
 from packages.domain.render_layer_utils import LAYER_Z_INDEX as _IMPORTED_LAYER_Z_INDEX
+from packages.domain.render_layer_utils import can_pass_through as _can_pass_through_pure
 from packages.domain.render_layer_utils import clip_adjusted_duration as _clip_adjusted_duration_pure
 from packages.domain.render_layer_utils import clip_effective_duration as _clip_effective_duration_pure
 from packages.domain.render_layer_utils import clip_playback_speed as _clip_playback_speed_pure

apps/worker/video_processing/watermark_engine.py

@@ -14,9 +14,10 @@
 from __future__ import annotations
 
 import logging
+from typing import Any
 
-from packages.domain.watermark_config import WATERMARK_POSITIONS  # noqa: F401
 from packages.domain.watermark_config import (
+    WATERMARK_POSITIONS,
     WatermarkConfig,
 )
 from packages.domain.watermark_config import (  # noqa: F401 — 向后兼容

packages/domain/pip_config.py

@@ -186,7 +186,7 @@ class PiPConfig:
         """最大 z_index."""
         if not self.layers:
             return 0
-        return max(layer.z_index for layer in self.layers)
+        return max(l.z_index for l in self.layers)
 
 
 # ── 纯逻辑工具函数 ───────────────────────────────────────────────────────────

packages/domain/subtitle_style.py

@@ -6,7 +6,7 @@
 
 from __future__ import annotations
 
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from typing import Any
 
 # ── 常量 ──────────────────────────────────────────────────────────────────────

packages/domain/trim_config.py

@@ -11,7 +11,7 @@
 from __future__ import annotations
 
 import logging
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from typing import Any
 
 logger = logging.getLogger(__name__)

packages/domain/watermark_config.py

@@ -10,7 +10,7 @@
 from __future__ import annotations
 
 import logging
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from typing import Any
 
 logger = logging.getLogger(__name__)

tests/unit/test_color_grade_config.py

@@ -39,7 +39,7 @@ class TestConstants:
 
     def test_preset_params_complete(self):
         assert set(PRESET_PARAMS.keys()) == VALID_PRESETS
-        for _preset, params in PRESET_PARAMS.items():
+        for preset, params in PRESET_PARAMS.items():
             assert set(params.keys()) == set(ALL_PARAM_KEYS)
 
     def test_default_params_keys(self):
@@ -54,7 +54,7 @@ class TestConstants:
             assert min_val <= DEFAULT_PARAMS[key] <= max_val
 
     def test_all_presets_within_ranges(self):
-        for _preset, params in PRESET_PARAMS.items():
+        for preset, params in PRESET_PARAMS.items():
             for key in ALL_PARAM_KEYS:
                 min_val, max_val = PARAM_RANGES[key]
                 assert min_val <= params[key] <= max_val, f"{preset}.{key}={params[key]} out of range"

tests/unit/test_pip_config.py

@@ -208,7 +208,7 @@ class TestPiPConfigFromDict:
             }
         )
         assert cfg.layer_count == 3
-        assert [layer.source for layer in cfg.layers] == ["bottom", "mid", "top"]
+        assert [l.source for l in cfg.layers] == ["bottom", "mid", "top"]
 
     def test_invalid_layer_skipped(self):
         cfg = PiPConfig.from_dict(

tests/unit/test_sticker_config.py

@@ -23,7 +23,7 @@ class TestConstants:
         assert len(POSITION_PRESETS) == 9
 
     def test_position_presets_normalized(self):
-        for _name, (x, y) in POSITION_PRESETS.items():
+        for name, (x, y) in POSITION_PRESETS.items():
             assert 0.0 <= x <= 1.0
             assert 0.0 <= y <= 1.0