Looks to be some questionable syntax in your config, FS3904 may be an issue on WIFI, might be able to hack something out from the following
example test configs
root@mamba:/etc/config# cat network
config interface 'loopback'
option device 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config globals 'globals'
option packet_steering '1'
option ula_prefix 'fde2:1857:9a33::/48'
config device
option name 'wan'
option macaddr '94:10:3e:85:b5:25'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
config interface 'wan6'
option device 'wan'
option proto 'dhcpv6'
config device
option name 'lan1'
option macaddr 'f6:4f:80:49:55:c2'
config device
option name 'lan2'
option macaddr 'f6:4f:80:49:55:c2'
config device
option name 'lan3'
option macaddr '94:10:3e:85:b5:25'
config device
option name 'lan4'
option macaddr '94:10:3e:85:b5:25'
config device
option name 'itch0'
option type 'bridge'
list ports 'lan3'
list ports 'lan4'
config device
option name 'itch1'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
option igmp_snooping '1'
option stp '1'
config bridge-vlan
option device 'itch0'
option vlan '10'
list ports 'lan4:*'
list ports 'lan3'
option alias 'lan'
config interface 'lan'
option proto 'static'
option ipaddr '192.168.10.1'
option netmask '255.255.255.0'
option ip6assign '60'
option device 'itch0.lan'
config bridge-vlan
option device 'itch1'
option vlan '20'
list ports 'lan2:t'
list ports 'lan1:t'
option alias 'ap'
config interface 'ap'
option proto 'static'
option ipaddr '192.168.20.1'
option netmask '255.255.255.0'
option ip6assign '64'
option device 'itch1.ap'
config bridge-vlan
option device 'itch1'
option vlan '30'
list ports 'lan2:t'
list ports 'lan1:u*'
option alias 'iot'
config interface 'iot'
option proto 'static'
option ipaddr '192.168.30.1'
option netmask '255.255.255.0'
option ip6assign '64'
option device 'itch1.iot'
config bridge-vlan
option device 'itch1'
option vlan '4094'
list ports 'lan2:t*'
option alias 'sink'
option local '0'
config interface 'windscribevpn'
option proto 'none'
option device 'tun0'
root@mamba:/etc/config# cat wireless
config wifi-device 'radio0'
option type 'mac80211'
option path 'soc/soc:pcie@82000000/pci0000:00/0000:00:02.0/0000:02:00.0'
option band '2g'
option htmode 'HT20'
option hwmode '11g'
option channel '6'
option country 'CA'
option cell_density '0'
option txpower '20'
option disabled '0'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'TuTu'
option key 'aaaaaaaa'
option encryption 'psk2+ccmp'
option macaddr '94:10:3e:85:b5:26'
config wifi-iface 'iot_radio0'
option device 'radio0'
option network 'iot'
option ifname 'wiot0'
option mode 'ap'
option ssid 'TuTuiot'
option key 'aaaaaaaa'
option encryption 'psk2+ccmp'
option macaddr 'f6:4f:80:49:55:c3'
config wifi-device 'radio1'
option type 'mac80211'
option path 'soc/soc:pcie@82000000/pci0000:00/0000:00:03.0/0000:03:00.0'
option channel '36'
option band '5g'
option htmode 'VHT80'
option hwmode '11a'
option country 'CA'
option cell_density '0'
option txpower '20'
option disabled '0'
config wifi-iface 'default_radio1'
option device 'radio1'
option network 'lan'
option mode 'ap'
option ssid 'TuTwo'
option key 'aaaaaaaa'
option encryption 'psk2+ccmp'
option macaddr '94:10:3e:85:b5:28'
config wifi-iface 'iot_radio1'
option device 'radio1'
option network 'iot'
option ifname 'wiot1'
option mode 'ap'
option ssid 'TuTwoiot'
option key 'aaaaaaaa'
option encryption 'psk2+ccmp'
option macaddr 'f6:4f:80:49:55:c4'
root@mamba:/etc/config# brctl show
bridge name bridge id STP enabled interfaces
itch0 7fff.94103e85b525 no lan4
wlan0
lan3
wlan1
itch1 7fff.f64f804955c2 yes lan2
wiot0
wiot1
lan1
root@mamba:/etc/config# bridge vlan
port vlan-id
lan4 10 PVID Egress Untagged
lan3 10 PVID Egress Untagged
lan2 20
30
4094 PVID
lan1 20
30 PVID Egress Untagged
itch0 10
itch1 20
30
wlan0 10 PVID Egress Untagged
wlan1 10 PVID Egress Untagged
wiot0 30 PVID Egress Untagged
wiot1 30 PVID Egress Untagged
root@mamba:/etc/config# netifd-netinfo.sh -d
DEVICE UP CARRIER PRESENT EXTERNAL TYPE
=============================================================================
eth0 x x x Network device
itch0 x x x bridge
itch0_10 x x x VLAN
itch1 x x x bridge
itch1_20 x x x VLAN
itch1_30 x x x VLAN
lan1 x x Network device
lan2 x x Network device
lan3 x x x Network device
lan4 x x x Network device
lo x x x Network device
wan x x x Network device
wiot0 x x x x Network device
wiot1 x x x x Network device
wlan0 x x x x Network device
wlan1 x x x x Network device
from a similar device.