Initial commit: snapAna 截图智能整理工具

包含 FastAPI 后端、React 前端、队列/OCR/标签/待办等完整功能。

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/providers/ocr_paddle.py

@@ -0,0 +1,43 @@
+"""PaddleOCR 本地 OCR（可选依赖）。"""
+from __future__ import annotations
+
+import asyncio
+from pathlib import Path
+
+from .base import OCRProvider
+
+
+class PaddleOCRProvider(OCRProvider):
+    """通过 PaddleOCR 本地识文。需 pip install paddleocr paddlepaddle。"""
+
+    name = "paddleocr"
+
+    def __init__(self, lang: str = "ch") -> None:
+        self.lang = lang
+        self._engine = None
+
+    async def recognize(self, image_path: Path) -> str:
+        return await asyncio.to_thread(self._sync_recognize, image_path)
+
+    def _sync_recognize(self, image_path: Path) -> str:
+        try:
+            from paddleocr import PaddleOCR  # type: ignore
+        except ImportError as exc:
+            raise RuntimeError(
+                "未安装 PaddleOCR，请执行: pip install paddleocr paddlepaddle"
+            ) from exc
+
+        if self._engine is None:
+            self._engine = PaddleOCR(use_angle_cls=True, lang=self.lang, show_log=False)
+
+        result = self._engine.ocr(str(image_path), cls=True)
+        lines: list[str] = []
+        if result and result[0]:
+            for line in result[0]:
+                if line and len(line) >= 2:
+                    text_part = line[1]
+                    if isinstance(text_part, (list, tuple)) and text_part:
+                        lines.append(str(text_part[0]))
+                    elif isinstance(text_part, str):
+                        lines.append(text_part)
+        return "\n".join(lines).strip()