fix(deps): pin paddlepaddle below 3.3.0 to avoid OCR text corruption

paddlepaddle 3.3.1 silently corrupts non-ASCII (CJK) recognized text
into literal U+FFFD replacement characters during rec postprocessing,
while leaving confidence scores high and ASCII/digit text unaffected.
The same release also breaks CPU oneDNN inference on Windows entirely
(NotImplementedError in onednn_instruction.cc). Verified on a real
task screenshot that downgrading to 3.2.x eliminates the corruption
with no other environment changes (same GBK-locale machine).

pyproject.toml

@@ -9,7 +9,7 @@ dependencies = [
     "httpx>=0.27.0",
     "mcp>=1.27,<2",
     "openai>=1.0.0",
-    "paddlepaddle>=3.0.0",
+    "paddlepaddle>=3.0.0,<3.3.0",
     "paddleocr>=3.0.0",
 ]