[Python] Why my Odoo extra-addons app doesn't show up?

I've been developing an odoo for my interest on my server with a Docker and when I try to add an extra-addons app to odoo for testing, it's not showing up.

Here's what I've done:

1. I've add my extra-addons path into my docker-compose

I create folder on my host (custom-addons) and change owner to odoo(101). I've check the odoo id in my docker container using id whoami when exec odoo container and it's show id 101
​

version: '3.1'
services:
web:
image: odoo:17.0
depends_on:
- db
ports:
- "8069:8069"
volumes:
- /opt/odoo17/custom-addons:/usr/lib/python3/dist-packages/odoo/extra-addons
- /opt/odoo17/config/odoo.conf:/etc/odoo/odoo.conf
- odoo-web-data:/var/lib/odoo
command: -- --dev=reload
db:
image: postgres:15
environment:
- POSTGRES_DB=postgres
- POSTGRES_PASSWORD=odoo
- POSTGRES_USER=odoo
volumes:
- odoo-db-data:/var/lib/postgresql/data

volumes:
odoo-web-data:
odoo-db-data:


2.I've Create my demo models in extra-addons for the test

• __init__.py

from . import models

• __manifest__py

{
'name': 'Custom Sales',
'version': '1.0',
'category': 'Sales',
'summary': 'Customize sales module',
'depends': ['sale'],
'data': [
'views/sale_order_views.xml',
],
'installable': True,
'application': False,
}

• models(folder)

__init.py__

from . import sale_order


sale_order.py

from odoo import models, fields

class SaleOrder(models.Model):
_inherit = 'sale.order'

custom_reference = fields.Char(string='Custom Reference', help='A custom reference for this sale order')

• views(folder)

sale_order_view.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
<record id="view_order_form_inherit_custom" model="ir.ui.view">
<field name="name">sale.order.form.inherit.custom</field>
<field name="model">sale.order</field>
<field name="inherit_id" ref="sale.view_order_form"/>
<field name="arch" type="xml">
<field name="partner_id" position="after">
<field name="custom_reference"/>
</field>
</field>
</record>
</odoo>


odoo.conf file

[options]
addons_path = /usr/lib/python3/dist-packages/odoo/addons,/usr/lib/python3/dist-packages/odoo/extra-addons
#data_dir = /var/lib/odoo
#admin_passwd = your_admin_password
logfile = /var/log/odoo/odoo-server.log
log_level = info


Check on odoo container (extra-addons folder) in docker. They all have the same stuff in there with owner odoo, and I did restart the docker-compose many times, but when I click **update app list ** in the browser, and search with the name, it's not showing up for just wonder why I've discussed with the gen AI for the solution, and still can't fix can anyone help me out please?

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