fix: remove padding from GLMOCREndToEndService and clean up ruff violations

- Drop image padding in GLMOCREndToEndService.recognize(); use raw image directly
- Fix F821 undefined `padded` references replaced with `image`
- Fix F601 duplicate dict key "≠" in converter
- Fix F841 unused `image_cls_ids` variable in layout_postprocess
- Fix E702 semicolon-separated statements in layout_postprocess
- Fix UP031 percent-format replaced with f-string in logging_config
- Auto-fix 44 additional ruff violations (import order, UP035/UP045/UP006, F401, F541)

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

tests/api/v1/endpoints/test_image_endpoint.py

@@ -1,5 +1,4 @@
 import numpy as np
-import pytest
 from fastapi import FastAPI
 from fastapi.testclient import TestClient
 
@@ -35,7 +34,9 @@ def test_image_endpoint_requires_exactly_one_of_image_url_or_image_base64():
     client = _build_client()
 
     missing = client.post("/ocr", json={})
-    both = client.post("/ocr", json={"image_url": "https://example.com/a.png", "image_base64": "abc"})
+    both = client.post(
+        "/ocr", json={"image_url": "https://example.com/a.png", "image_base64": "abc"}
+    )
 
     assert missing.status_code == 422
     assert both.status_code == 422