build(site): [SITE-07] preserve exact Stack Overflow revision and attribution

docs/licenses/console/stackoverflow/ATTRIBUTION.md

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+# customStringify attribution
+
+The customStringify function embedded in console-feed 3.2.2, within ArtPlayer's
+legacy console bundle, is supplied under Creative Commons Attribution-ShareAlike
+4.0 International (CC BY-SA 4.0).
+
+- Author: [Alexander Mills](https://stackoverflow.com/users/1223975/alexander-mills).
+- Source: [answer 48254637](https://stackoverflow.com/a/48254637) to
+  "JSON.stringify: avoid TypeError: Converting circular structure to JSON".
+- Matching revision: [revision 5, 2018-09-19, fixed API record](https://api.stackexchange.com/2.3/revisions/8FD5F52A-B16F-4C66-AB48-830EABB36CC0?site=stackoverflow&filter=withbody).
+- The answer credits [Rob W](https://stackoverflow.com/users/938089/rob-w) and
+  [his original answer](https://stackoverflow.com/a/11616993); that credit is retained.
+- [License and disclaimer](https://creativecommons.org/licenses/by-sa/4.0/),
+  [full local license](LICENSE), and [original snippet](SOURCE.js).
+
+Changes: console-feed compiled const declarations to var and formatted the code
+for ES3; Parcel subsequently minified it. The matched function's runtime before
+minification is exactly reproduced from the snippet. Its algorithm is retained.
+ArtPlayer's new TypeScript adapter does not modify this function.
+
+This notice identifies the particular included material and its upstream license.
+It does not describe the entire console bundle as MIT-only or replace the other
+component licenses listed in /THIRD_PARTY_NOTICES.md. No endorsement is implied.