Say on every directory how it treats files it does not know, and check it (issue 1024, ADR 0422)

Every directory and archive resource carries `unknown`: move-out for a home folder whose program writes nothing there (the node-engine, delivered in mesh-host #117, moves the rest to ~/.local/state/mesh-moved/<module>/ with a list), module for ~/.ssh and ~/.claude, program elsewhere; `knows` keeps what a program or the operator relies on (powerlevel10k's compiled files, i3's scripts and the asus/g14 drop-ins, dunst's slack rule, betterbird's records, node-env's forge credential, issue 1033). Two shared folders are no longer declared. Each module's README says it. checks/owned holds every manifest to it; checks/sshdir stays while main's merge check runs it (issue 1035). Tests that pin a manifest follow the new key only. Reviewed in three rounds.

modules/mounts/README.md

@@ -210,3 +210,12 @@ The tools run as the operator account and act as root through `sudo -n`. The `su
 account every command, so **this module's code is the only line** between a tool call and root: each act
 checks again what it may touch before it runs a command, and a test holds each check. Narrowing what sudo
 grants the account to the commands these modules need is a separate decision, not made here.
+
+## Files it does not know
+
+Each directory or archive this module declares says how it treats a file it did not write (ADR 0422, ADR 0416).
+
+- `${dir:state}`: everything in it is the program's; the mesh moves nothing out (ADR 0422 §2).
+- `/etc/mesh-mounts`: everything in it is the program's; the mesh moves nothing out (ADR 0422 §2).
+- `/var/lib/mesh-mounts`: everything in it is the program's; the mesh moves nothing out (ADR 0422 §2).
+- `/var/lib/mesh-mounts/from-bus`: everything in it is the program's; the mesh moves nothing out (ADR 0422 §2).

modules/mounts/module.json

@@ -73,13 +73,15 @@
       "id": "state",
       "type": "directory",
       "mode": "0700",
-      "place": "."
+      "place": ".",
+      "unknown": "program"
     },
     {
       "id": "config-dir",
       "type": "directory",
       "path": "/etc/mesh-mounts",
-      "mode": "0755"
+      "mode": "0755",
+      "unknown": "program"
     },
     {
       "id": "config",
@@ -92,14 +94,16 @@
       "id": "bus-dir-parent",
       "type": "directory",
       "path": "/var/lib/mesh-mounts",
-      "mode": "0755"
+      "mode": "0755",
+      "unknown": "program"
     },
     {
       "id": "bus-dir",
       "type": "directory",
       "path": "/var/lib/mesh-mounts/from-bus",
       "mode": "0755",
-      "owner": "${machine:account}"
+      "owner": "${machine:account}",
+      "unknown": "program"
     },
     {
       "id": "apply",