fix(setup-network): prompt user to choose netplan file when multiple configs exist

spoke/setup-network.sh

@@ -198,10 +198,28 @@ case "$NET_OPT" in
     NETPLAN_BACKUP_DIR="/root/.config/tinyboard/netplan-backups"
     mkdir -p "$NETPLAN_BACKUP_DIR"
 
-    while IFS= read -r -d '' NETPLAN_FILE; do
-        if ! grep -q "access-points" "$NETPLAN_FILE" 2>/dev/null; then
-            continue
+    mapfile -t NETPLAN_FILES < <(find /etc/netplan -maxdepth 1 -name '*.yaml' 2>/dev/null | sort)
+
+    if [ ${#NETPLAN_FILES[@]} -eq 0 ]; then
+        warn "No netplan config files found — skipping persistent config update."
+        NETPLAN_FILE=""
+    elif [ ${#NETPLAN_FILES[@]} -eq 1 ]; then
+        NETPLAN_FILE="${NETPLAN_FILES[0]}"
+    else
+        warn "Multiple netplan config files found:"
+        for i in "${!NETPLAN_FILES[@]}"; do
+            echo -e "  $((i+1))) ${NETPLAN_FILES[$i]}"
+        done
+        echo ""
+        read -rp "Which file should be updated with the new WiFi credentials? [1]: " NP_CHOICE
+        NP_CHOICE="${NP_CHOICE:-1}"
+        [[ "$NP_CHOICE" =~ ^[0-9]+$ ]] || die "Invalid selection."
+        NP_IDX=$((NP_CHOICE - 1))
+        [ "$NP_IDX" -ge 0 ] && [ "$NP_IDX" -lt "${#NETPLAN_FILES[@]}" ] || die "Selection out of range."
+        NETPLAN_FILE="${NETPLAN_FILES[$NP_IDX]}"
     fi
+
+    if [ -n "$NETPLAN_FILE" ] && grep -q "access-points" "$NETPLAN_FILE" 2>/dev/null; then
         BACKUP_FILE="$NETPLAN_BACKUP_DIR/$(basename "${NETPLAN_FILE}").$(date +%Y%m%d%H%M%S)"
         cp "$NETPLAN_FILE" "$BACKUP_FILE"
         info "Backed up: $NETPLAN_FILE → $BACKUP_FILE"
@@ -219,9 +237,10 @@ txt = re.sub(
 open(path, "w").write(txt)
 PYEOF
         info "Updated: $NETPLAN_FILE"
-    done < <(find /etc/netplan -maxdepth 1 -name '*.yaml' -print0 2>/dev/null)
-
-    info "All netplan configs updated. Changes will persist on next boot."
+        info "Changes will persist on next boot."
+    elif [ -n "$NETPLAN_FILE" ]; then
+        warn "$NETPLAN_FILE has no access-points section — skipping."
+    fi
 
     info "Connected to '${NEW_SSID}' successfully."
     exit 0