[ao3] extract detailed 'chapters' metadata (#6013)

test/results/ao3.py

@@ -16,7 +16,35 @@ __tests__ = (
 
     "author"   : "Flowers_for_ghouls",
     "bookmarks": range(100, 300),
-    "chapters" : 27,
+    "chapters": {
+        "120506833": "1. Showtime",
+        "120866506": "2. A Comedy of Errors",
+        "121739140": "3. Gifts",
+        "121941313": "4. Date Night",
+        "123054364": "5. Breaking the News",
+        "123579898": "6. Isolated Events",
+        "124258153": "7. The Home Stretch",
+        "124886536": "8. Domestic Bliss",
+        "125335270": "9. The Offer",
+        "125871166": "10. The Promise",
+        "126223879": "11. Gifts II",
+        "126692398": "12. On the Move",
+        "127471375": "13. The Fruit Vignettes",
+        "128496448": "14. Respite",
+        "128994919": "15. Changes",
+        "129492154": "16. Halloween",
+        "130379002": "17. GIfts III",
+        "131066743": "18. R.A.S.B.E.W.",
+        "131884072": "19. The Longest Night",
+        "132730264": "20. Meeting the Pack",
+        "133714876": "21. A Mystery",
+        "134663854": "22. Growing Pains",
+        "135499822": "23. Presentation Day",
+        "136500946": "24. Revelations",
+        "137857876": "25. The Retirement Plan",
+        "139463056": "26. Two Birds, One Stone",
+        "141697141": "27. New Management",
+    },
     "comments" : range(800, 2000),
     "date"     : "dt:2023-06-11 00:00:00",
     "date_completed": "dt:2024-05-10 00:00:00",