Route automatic staging through qB data mounts

deploy/production/README.md

@@ -25,10 +25,17 @@ have different mount IDs and `link(2)` may return `EXDEV` across them. The
 client deliberately treats that case as copy-only and performs a full payload
 free-space check.
 
-When a Syncthing route is physically nested below the qB root, mount the qB
-root once and map the exact Syncthing API folder through it:
+Automatic routes always use the Syncthing API path `routes/<route-id>`. Bind
+that path from a dedicated directory beneath the qB data root, then map the
+same path through the qB client mount:
 
 ```yaml
+# Syncthing compose project
+volumes:
+  - /srv/syncthing-config:/var/syncthing
+  - /srv/downloads/.archive-control-routes:/var/syncthing/routes
+
+# Archive Control client compose project
 volumes:
   - /srv/downloads:/data/qb
   - /srv/syncthing-config:/data/sync
@@ -38,15 +45,14 @@ volumes:
 [syncthing]
 api_root = "/var/syncthing"
 local_root = "/data/sync"
-local_path_overrides = { "/var/syncthing/Downloads/Sync" = "/data/qb/Sync" }
+local_path_overrides = { "/var/syncthing/routes" = "/data/qb/.archive-control-routes" }
 ```
 
-Do **not** additionally mount `/srv/downloads/Sync` at a path beneath
-`/data/sync`. The override is the authoritative mapping for that folder and
-keeps qB source files and staging destinations in one mount namespace. Use
-the folder's normalized API-visible **path** as the override key (for example,
-Syncthing `~/Downloads/Sync` becomes `/var/syncthing/Downloads/Sync`); do not
-use the folder ID.
+Do **not** mount the route directory separately into the client. The override
+is the authoritative mapping and keeps qB source files and automatic route
+folders in one mount namespace. Existing manually configured Syncthing folders
+below the qB tree may retain their own exact overrides. Use API-visible paths,
+not Syncthing folder IDs, as override keys.
 
 Before starting a stack, validate its config and then run the generic host
 preflight with that machine's own paths and container names: