test(03-01): add ASRInput and ASROutput schemas

- Add ASRInput schema with video_path and content_type fields
- Add ASROutput schema with tool/has_subtitle/output_files/segments/text/duration_seconds/speakers
- Create test_processors directory with conftest fixtures
- Add comprehensive schema tests (8 test cases)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/test_processors/conftest.py

@@ -0,0 +1,96 @@
+"""Shared fixtures for processor tests"""
+
+import os
+import pytest
+from pathlib import Path
+from unittest.mock import AsyncMock, MagicMock, patch
+
+
+@pytest.fixture
+def mock_whisper_path(tmp_path):
+    """Mock whisper.cpp path"""
+    whisper_dir = tmp_path / "whisper.cpp"
+    whisper_dir.mkdir()
+    (whisper_dir / "whisper-cli").write_text("")
+    models_dir = whisper_dir / "models"
+    models_dir.mkdir()
+    (models_dir / "ggml-base.bin").write_text("")
+    return str(whisper_dir)
+
+
+@pytest.fixture
+def mock_bilibili_api():
+    """Mock B站 API 响应"""
+    with patch("aiohttp.ClientSession.get") as mock_get:
+        yield mock_get
+
+
+@pytest.fixture
+def sample_video(tmp_path):
+    """创建测试视频文件"""
+    video_path = tmp_path / "test_video.mp4"
+    video_path.write_text("fake video content")
+    return str(video_path)
+
+
+@pytest.fixture
+def sample_subtitle_response():
+    """B站字幕 API 响应示例"""
+    return {
+        "data": {
+            "subtitle": {
+                "list": [{
+                    "lan": "ai-zh",
+                    "lan_doc": "中文（自动生成）",
+                    "subtitle_url": "//example.com/subtitle.json"
+                }]
+            }
+        }
+    }
+
+
+@pytest.fixture
+def sample_subtitle_content():
+    """字幕内容示例"""
+    return {
+        "body": [
+            {"from": 0.0, "to": 3.2, "content": "这是第一段字幕"},
+            {"from": 3.5, "to": 6.8, "content": "这是第二段字幕"},
+        ]
+    }
+
+
+@pytest.fixture
+def sample_whisper_output(tmp_path):
+    """Whisper 输出示例"""
+    output_base = tmp_path / "test_video"
+    return {
+        "txt": str(output_base.with_suffix(".txt")),
+        "srt": str(output_base.with_suffix(".srt")),
+        "json": str(output_base.with_suffix(".json")),
+    }
+
+
+@pytest.fixture
+def mock_state_manager():
+    """Mock WorkflowStateManager"""
+    manager = MagicMock()
+    manager.load.return_value = None
+    manager.save = MagicMock()
+    return manager
+
+
+@pytest.fixture
+def mock_settings():
+    """Mock KBSettings without HF_TOKEN"""
+    settings = MagicMock()
+    settings.hf_token.get_secret_value.return_value = ""
+    return settings
+
+
+@pytest.fixture
+def mock_settings_with_hf_token():
+    """Mock KBSettings with HF_TOKEN"""
+    settings = MagicMock()
+    settings.hf_token.get_secret_value.return_value = "test_hf_token_123"
+    return settings