Propagate new fallback model to all remaining script references

All FALLBACK_${MY_ID}_COVERS_${REMOTE_ID}_TIER* references updated to
FALLBACK_${REMOTE_ID}_TIER* across fallback_test.sh, partnership_manager.sh,
docker_update.sh, mesh_monitor.sh, and monitor.php. mesh_monitor.sh drops
the inner covering-host loop — tier data now lives in the covered host's own
conf so no cross-host scan is needed. monitor.php reads from the covered
host's conf file rather than the local host's.

Monitors/mesh_monitor.sh

@@ -142,30 +142,29 @@ for covered in "${ALL_HOST_IDS[@]}"; do
     covered_owner_var="${covered}_OWNER";   covered_owner="${!covered_owner_var:-$covered}"
     covered_email_var="${covered}_OWNER_EMAIL"; covered_email="${!covered_email_var:-}"
 
-    # Find who covers this host and collect their tiers
+    # Each host defines its own recovery profile — read directly from covered host's vars
     any_tiers=false
     declare -A tier_containers=()
     declare -A tier_delays=()
     covered_by=""
 
-    for covering in "${ALL_HOST_IDS[@]}"; do
-        [[ "$covering" == "$covered" ]] && continue
+    for tier in 1 2 3 4; do
+        containers=$(get_array "FALLBACK_${covered}_TIER${tier}")
+        [[ -z "$containers" ]] && continue
+        any_tiers=true
+        tier_containers[$tier]="$containers"
+        delay_var="${covered}_TIER${tier}_DELAY"
+        tier_delays[$tier]="${!delay_var:-0}"
+    done
 
-        for tier in 1 2 3 4; do
-            containers=$(get_array "FALLBACK_${covering}_COVERS_${covered}_TIER${tier}")
-            [[ -z "$containers" ]] && continue
-            any_tiers=true
-            tier_containers[$tier]="$containers"
-            delay_var="${covered}_TIER${tier}_DELAY"
-            tier_delays[$tier]="${!delay_var:-0}"
-        done
-
-        [[ "$any_tiers" == true ]] && {
+    if [[ "$any_tiers" == true ]]; then
+        for covering in "${ALL_HOST_IDS[@]}"; do
+            [[ "$covering" == "$covered" ]] && continue
             covering_owner_var="${covering}_OWNER"
             covering_owner="${!covering_owner_var:-$covering}"
-            covered_by="$covering  ($covering_owner)"
-        }
-    done
+            covered_by="${covered_by:+$covered_by, }$covering ($covering_owner)"
+        done
+    fi
 
     [[ "$any_tiers" == false ]] && continue