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>

app/services/converter.py

@@ -112,14 +112,18 @@ class Converter:
     # Pre-compiled regex patterns for preprocessing
     _RE_VSPACE = re.compile(r"\\\[1mm\]")
     _RE_BLOCK_FORMULA_INLINE = re.compile(r"([^\n])(\s*)\\\[(.*?)\\\]([^\n])", re.DOTALL)
-    _RE_BLOCK_FORMULA_LINE = re.compile(r"^(\s*)\\\[(.*?)\\\](\s*)(?=\n|$)", re.MULTILINE | re.DOTALL)
+    _RE_BLOCK_FORMULA_LINE = re.compile(
+        r"^(\s*)\\\[(.*?)\\\](\s*)(?=\n|$)", re.MULTILINE | re.DOTALL
+    )
     _RE_ARITHMATEX = re.compile(r'<span class="arithmatex">(.*?)</span>')
     _RE_INLINE_SPACE = re.compile(r"(?<!\$)\$ +(.+?) +\$(?!\$)")
     _RE_ARRAY_SPECIFIER = re.compile(r"\\begin\{array\}\{([^}]+)\}")
     _RE_LEFT_BRACE = re.compile(r"\\left\\\{\s+")
     _RE_RIGHT_BRACE = re.compile(r"\s+\\right\\\}")
     _RE_CASES = re.compile(r"\\begin\{cases\}(.*?)\\end\{cases\}", re.DOTALL)
-    _RE_ALIGNED_BRACE = re.compile(r"\\left\\\{\\begin\{aligned\}(.*?)\\end\{aligned\}\\right\.", re.DOTALL)
+    _RE_ALIGNED_BRACE = re.compile(
+        r"\\left\\\{\\begin\{aligned\}(.*?)\\end\{aligned\}\\right\.", re.DOTALL
+    )
     _RE_ALIGNED = re.compile(r"\\begin\{aligned\}(.*?)\\end\{aligned\}", re.DOTALL)
     _RE_TAG = re.compile(r"\$\$(.*?)\\tag\s*\{([^}]+)\}\s*\$\$", re.DOTALL)
     _RE_VMATRIX = re.compile(r"\\begin\{vmatrix\}(.*?)\\end\{vmatrix\}", re.DOTALL)
@@ -368,7 +372,9 @@ class Converter:
                 mathml = latex_to_mathml(latex_formula)
                 return Converter._postprocess_mathml_for_word(mathml)
             except Exception as e:
-                raise RuntimeError(f"MathML conversion failed: {pandoc_error}. latex2mathml fallback also failed: {e}") from e
+                raise RuntimeError(
+                    f"MathML conversion failed: {pandoc_error}. latex2mathml fallback also failed: {e}"
+                ) from e
 
     @staticmethod
     def _postprocess_mathml_for_word(mathml: str) -> str:
@@ -583,7 +589,6 @@ class Converter:
             "&#x21D3;": "⇓",  # Downarrow
             "&#x2195;": "↕",  # updownarrow
             "&#x21D5;": "⇕",  # Updownarrow
-            "&#x2260;": "≠",  # ne
             "&#x226A;": "≪",  # ll
             "&#x226B;": "≫",  # gg
             "&#x2A7D;": "⩽",  # leqslant
@@ -962,7 +967,7 @@ class Converter:
         """Export to DOCX format using pypandoc."""
         extra_args = [
             "--highlight-style=pygments",
-            f"--reference-doc=app/pkg/reference.docx",
+            "--reference-doc=app/pkg/reference.docx",
         ]
         pypandoc.convert_file(
             input_path,