fix(sre): sop-checklist section_marker_present backward checkbox search

The checkbox-detection window (500 chars forward from marker) failed
for memory-consulted because the author placed the marker mid-sentence
and the checkbox was 600+ chars before the marker. Add a backward
fallback search (2000 chars) to handle inline markers.

mc#1099 follow-up.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitea/scripts/sop-checklist.py

@@ -206,7 +206,17 @@ def section_marker_present(body: str, marker: str) -> bool:
         next_line_end = len(body)
     next_line = body[line_end + 1:next_line_end]
     stripped_next = re.sub(r"[\s\*:\-\[\]]+", "", next_line)
-    return bool(stripped_next)
+    if stripped_next:
+        return True
+    # Last resort: the marker may appear mid-sentence (e.g.
+    # **Memory/saved-feedback consulted**: No applicable...).
+    # The checkbox is on the PRECEDING line. Search backward from
+    # the marker for the checkbox pattern.
+    # mc#1099 follow-up: memory-consulted detection was failing because
+    # the checkbox was 600+ chars before the inline marker text.
+    _CHECKBOX_RE = re.compile(r"- \[[ x\]]|<input", re.IGNORECASE)
+    before = body[max(0, idx - 2000):idx]
+    return bool(_CHECKBOX_RE.search(before))
 
 
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