Initial setup completed for creating a new estate module.
Created the base estate module and installed it.
Initialized model and model fields which generates tables using odoo ORM.

Fixed issues and errors raised by the first push.
Defined access rights by creating security/ir.model.access.csv file in estate.
Defined the csv file in manifest.

Added actions and menus in the module.
Created estate_property_views.xml for the window action.
Added estate_property_menus.xml to define the 3-level menu structure.
Registered new XML files in the manifest data list.

Created new model called estate_property_type.py.
Added actions and menus.
Implemented list, form and search views in estate_property_types.xml

Implemented Many2many and One2many relations.
Added estate.property.tag model with Many2many relation to estate.property
Added offer_ids One2many field to display offers on property form
Created corresponding views, menus, actions and access to above models and files

Understood the concept of computed and relational fields.
Imported api from odoo to supports depends decorator.
Calculated total area by adding living area and garden area.
And best price by selecting the highest offer price using mapped method.

Implemented inverse function on validity_date to compute deadline from
date_availability and vice versa.
Added @api.onchange on garden field to auto-set area (10) and
orientation (North) when enabled.
When garden is disabled, garden area and orientation are cleared automatically.

Implement action_sold and action_cancel logic with UserError guards
Add Accept/Refuse buttons to property offers using fa-icons
Link offer acceptance to property selling_price and buyer_id
Update UI with statusbar widget and button visibility rules

Enforce strictly positive expected and offer prices via SQL constraints
Set non-negative selling price constraint
Added UNIQUE constraints on property type and property tag names.
Added Python constraint using float_compare to prevent selling price from being
lower than 90% of expected price

Add ondelete constraint to prevent deletion of non-new/cancelled properties
Set property state to 'offer_received' on offer creation and blocked offers
lower than existing best offer
Add property_ids field to res.users via model inheritance
Add Real Estate Properties tab to user form view via view inheritance

Added estate_property_issues so we can report any issues in the property
Added computed SLA deadline and overdue logic based on issue priority.
Implemented restriction in action_sold to prevent selling properties with
unresolved high-priority issues.

Completed ch 13.
Created a new module called estate_account that depends on estate and account.
Inherited estate.property to override action_sold.
Used the inherited model to create customer invoice as a property gets sold.