R3.2.8.6-R1.3C-KK1-R6A-R1 Four-Language Heading Parity and Citation Whitespace Integrity Fix

config.py

@@ -195,7 +195,8 @@ def load_config():
                 "abstract", "keyword", "keywords", "摘要", "关键词", "关键字", 
                 "reference", "references", "reference list", "参考文献", 
                 "acknowledgment", "acknowledgements", "致谢",
-                "аннотация", "ключевые слова", "түйіндеме", "кілт сөздер"
+                "аннотация", "ключевые слова", "аңдатпа", "түйіндеме",
+                "түйін сөздер", "түйінді сөздер", "кілт сөздер"
             ]
         },
 

core/pipeline_agent.py

@@ -2638,6 +2638,24 @@ SECTION: {section_name}
             if re.search(r"\[?CITE-\d+\]?", sentence, re.IGNORECASE)
         ]
 
+    @staticmethod
+    def _preserve_sentence_boundary_whitespace(original, revised):
+        """Restore only the source sentence's outer whitespace envelope.
+
+        Citation audit models return sentence cores and callers historically
+        stripped them before splice-back.  When the original span begins with
+        the inter-sentence space, losing that envelope joins adjacent sentences
+        (for example ``evidence.ChatGPT``).  Preserve boundary whitespace only;
+        never normalize punctuation, DOI strings, decimals, or internal prose.
+        """
+        source = str(original or "")
+        core = str(revised or "").strip()
+        if not core:
+            return ""
+        leading = source[: len(source) - len(source.lstrip())]
+        trailing = source[len(source.rstrip()) :]
+        return f"{leading}{core}{trailing}"
+
     @staticmethod
     def _translation_numeric_regex():
         # Canonical immutable numeric token used by both translation protection
@@ -2916,7 +2934,10 @@ Return exactly:
                         f"Citation semantic audit left multiple citations for {record['id']}: "
                         f"{sentence_violations[:2]}"
                     )
-                replacements[record["id"]] = revised
+                replacements[record["id"]] = self._preserve_sentence_boundary_whitespace(
+                    record["original"],
+                    revised,
+                )
 
         if unsupported:
             logging.warning(
@@ -3055,7 +3076,11 @@ Return exactly:
                         '',
                         f'No candidate met the conservative support threshold; best overlap={overlap}, coverage={coverage:.3f}.',
                     )
-            rebuilt.append(revised)
+            rebuilt.append(
+                self._preserve_sentence_boundary_whitespace(original, revised)
+                if revised
+                else ""
+            )
             cursor = end
         rebuilt.append(str(text)[cursor:])
         recovered = ''.join(rebuilt)

smartpaper_restore_bridge/frontend/index.html

@@ -401,9 +401,11 @@
   }
 
   const UNNUMBERED_HEADINGS = new Set([
-    "abstract","keywords","references","摘要","关键词","参考文献",
-    "аннотация","ключевые слова","литература","список литературы",
-    "аңдатпа","аннотация","түйінді сөздер","кілт сөздер","әдебиеттер","пайдаланылған әдебиеттер"
+    "abstract","keyword","keywords","references","reference list",
+    "摘要","关键词","关键字","参考文献",
+    "аннотация","ключевое слово","ключевые слова","литература","список литературы",
+    "аңдатпа","түйіндеме","түйін сөздер","түйінді сөздер","кілт сөздер",
+    "әдебиеттер","пайдаланылған әдебиеттер"
   ]);
 
   function cleanHeadingTitle(value) {