Media folder fix: B-1 (classes, export, remove), B-2/B-3 bench evidence, Part A (who runs the apps); 09 §3 decisions 242-243 (D9 = A with a limit; the N100 waits); 15 §2 ruled

documentation/architecture/09-update-architecture.md

@@ -915,6 +915,18 @@ its length, and both fixes cost something the household would notice — operato
 127. **The agent's three by-design abilities (`03` §3.1) stay for now**; revisited before the first paying customer.
      *Operator ruling 2026-10-05.* (R-861)
 
+### 2026-10-14 (evening, ~21:20) — the media folders and the N100 (recorded before the work; the media-folder-fix brief)
+
+242. **D9 = A, with a limit.** The media apps keep today's `media` folder — nothing on a drive moves. Sonarr and Radarr
+     see the drive's whole `media` folder (they must: download and library on ONE mount, or every import is a full
+     copy); **the download clients (qBittorrent, Transmission) see only their own download folder**, so they can never
+     write into the family's photos, music or books. Every app sees a file at the same path as on the box.
+     Not chosen: B — a separate video folder (a one-time move on every box with files). *Operator ruling 2026-10-14.*
+     (`15-media-library.md` §2; R-1014)
+243. **The N100 lived-in setup waits until the all-drives build has been tested on the Tester 1 rig.** Until then the
+     N100 stays Tier 0 and is not fenced (it may host a second test rig). This replaces decision 240's timing.
+     *Operator ruling 2026-10-14.*
+
 ### 2026-10-14 (afternoon) — media apps on every drive (recorded before the work; the media-all-drives brief)
 
 237. **Media apps see every drive.** Each media app (`15-media-library.md` §3) binds every enrolled drive's media