fix: resolve 5 bugs found during comprehensive tool testing

1. split batch 404: register split tool in batch registry via
   registerToolProcessFn() so /api/v1/tools/split/batch works

2. CodeFormer crash: inference_app() expects a file path, not a numpy
   array. Save to temp file before calling, read result back.

3. OCR fallback chain: fix case-sensitive "Segmentation fault" match
   that prevented PaddleOCR crash from triggering Tesseract fallback.
   Also add "process crashed" check. Upgrade ARM paddlepaddle to >=3.2.1.

4. blur-faces large images: downscale to 1920px max before MediaPipe
   detection, scale coordinates back. Also add rotation retry for
   portrait-oriented images where BlazeFace misses faces. Applied to
   detect_faces.py, enhance_faces.py, and restore.py.

5. color-adjustments tool ID: fix mismatch in index.ts registration
   array (was "color-adjustments", should be "adjust-colors").

docker/feature-manifest.json

@@ -283,7 +283,7 @@
           "paddlepaddle-gpu>=3.2.1 --extra-index-url https://www.paddlepaddle.org.cn/packages/stable/cu126/",
           "paddleocr[doc-parser]>=3.4.0,<3.5.0"
         ],
-        "arm64": ["paddlepaddle==3.0.0", "paddleocr[doc-parser]>=3.4.0,<3.5.0"]
+        "arm64": ["paddlepaddle>=3.2.1", "paddleocr[doc-parser]>=3.4.0,<3.5.0"]
       },
       "pipFlags": {},
       "postInstall": [],