feat: VRSub 单体应用（WOV 单机版）初始提交

为视频生成 VR 双眼字幕的单体实现：FastAPI 后端、调度器与全部节点
（提音/转写/翻译/ASS/抽帧/OCR/LLM 过滤）在单进程内运行。

- 节点协议（wov_sdk 数据模型）与分布式版保持一致，预留回退桥梁
- 工作流即数据：DAG 存于 workflows/*.json，模型/链路改动只改数据
- 调度器：拓扑顺序执行、断点续跑（产物重建）、任务暂停/继续
- 抽帧按帧间隔（select 按帧号精确取帧），VLM OCR 与 LLM 过滤使用
  自适应线程池弹性并发，并打印数据处理速度进度日志
- 100% 行覆盖率（pytest --cov-fail-under=100）

manifests/ass.json

@@ -0,0 +1,21 @@
+{
+  "id": "srt-to-dual-eye-ass",
+  "name": "SRT to Dual-Eye ASS",
+  "version": "0.1.0",
+  "capability": "subtitle",
+  "repo_dir": "wov-node-ass",
+  "command": ["python", "-m", "wov_node_ass"],
+  "env": {
+    "WOV_NODE_PORT": "0"
+  },
+  "input_schema": {
+    "cn_srt_uri": "file"
+  },
+  "output_schema": {
+    "ass_uri": "file"
+  },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 60,
+  "health_timeout_seconds": 10,
+  "keep_warm": false
+}

manifests/echo.json

@@ -0,0 +1,22 @@
+{
+  "id": "echo",
+  "name": "Echo Node",
+  "version": "0.1.0",
+  "capability": "echo",
+  "repo_dir": "wov-node-echo",
+  "command": ["python", "-m", "wov_node_echo"],
+  "env": {
+    "WOV_NODE_PORT": "0"
+  },
+  "input_schema": {
+    "text": "string"
+  },
+  "output_schema": {
+    "text": "string",
+    "file_uri": "file"
+  },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 15,
+  "health_timeout_seconds": 10,
+  "keep_warm": false
+}

manifests/ffmpeg.json

@@ -0,0 +1,21 @@
+{
+  "id": "ffmpeg-extract",
+  "name": "FFmpeg Audio Extract",
+  "version": "0.1.0",
+  "capability": "media",
+  "repo_dir": "wov-node-ffmpeg",
+  "command": ["python", "-m", "wov_node_ffmpeg"],
+  "env": {
+    "WOV_NODE_PORT": "0"
+  },
+  "input_schema": {
+    "video_uri": "file"
+  },
+  "output_schema": {
+    "audio_uri": "file"
+  },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 60,
+  "health_timeout_seconds": 10,
+  "keep_warm": false
+}

manifests/frame-extract.json

@@ -0,0 +1,15 @@
+{
+  "id": "frame-extract",
+  "name": "Frame Extract",
+  "version": "0.1.0",
+  "capability": "frame-extract",
+  "repo_dir": "nodes",
+  "command": ["python", "-m", "frame_extract"],
+  "env": {},
+  "input_schema": { "video_uri": "file" },
+  "output_schema": { "frames_manifest": "file", "frame_count": "integer" },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 300,
+  "health_timeout_seconds": 10,
+  "keep_warm": false
+}

manifests/llm-filter.json

@@ -0,0 +1,15 @@
+{
+  "id": "llm-filter",
+  "name": "LLM Subtitle Filter",
+  "version": "0.1.0",
+  "capability": "llm-filter",
+  "repo_dir": "nodes",
+  "command": ["python", "-m", "llm_filter"],
+  "env": {},
+  "input_schema": { "srt_uri": "file" },
+  "output_schema": { "srt_uri": "file", "kept": "integer", "removed": "integer" },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 300,
+  "health_timeout_seconds": 10,
+  "keep_warm": false
+}

manifests/llm.json

@@ -0,0 +1,21 @@
+{
+  "id": "llm-translate",
+  "name": "LLM Subtitle Translate",
+  "version": "0.1.0",
+  "capability": "llm",
+  "repo_dir": "wov-node-llm",
+  "command": ["python", "-m", "wov_node_llm"],
+  "env": {
+    "WOV_NODE_PORT": "0"
+  },
+  "input_schema": {
+    "srt_uri": "file"
+  },
+  "output_schema": {
+    "cn_srt_uri": "file"
+  },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 60,
+  "health_timeout_seconds": 10,
+  "keep_warm": false
+}

manifests/subtitle-ocr.json

@@ -0,0 +1,15 @@
+{
+  "id": "subtitle-ocr",
+  "name": "Subtitle OCR",
+  "version": "0.1.0",
+  "capability": "subtitle-ocr",
+  "repo_dir": "nodes",
+  "command": ["python", "-m", "subtitle_ocr"],
+  "env": {},
+  "input_schema": { "frames_manifest": "file" },
+  "output_schema": { "srt_uri": "file", "count": "integer" },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 300,
+  "health_timeout_seconds": 10,
+  "keep_warm": false
+}

manifests/vlm.json

@@ -0,0 +1,15 @@
+{
+  "id": "vlm-ocr",
+  "name": "VLM OCR",
+  "version": "0.1.0",
+  "capability": "ocr",
+  "repo_dir": "nodes",
+  "command": ["python", "-m", "vlm_ocr"],
+  "env": {},
+  "input_schema": { "image_uri": "file" },
+  "output_schema": { "text": "string", "text_uri": "file" },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 300,
+  "health_timeout_seconds": 10,
+  "keep_warm": false
+}

manifests/whisper.json

@@ -0,0 +1,21 @@
+{
+  "id": "faster-whisper",
+  "name": "Faster Whisper ASR",
+  "version": "0.1.0",
+  "capability": "asr",
+  "repo_dir": "wov-node-whisper",
+  "command": ["python", "-m", "wov_node_whisper"],
+  "env": {
+    "WOV_NODE_PORT": "0"
+  },
+  "input_schema": {
+    "audio_uri": "file"
+  },
+  "output_schema": {
+    "srt_uri": "file"
+  },
+  "max_concurrency": 1,
+  "idle_ttl_seconds": 300,
+  "health_timeout_seconds": 30,
+  "keep_warm": false
+}