-create new estate model
-create offer for a property and relation between properties like one2Many ,
many2Many, many2One
-create computed fields
-create action fields and action buttons for sold & cancle and offer accept &
refused
-create views for property, type, tag and offer
-create security for all the the above model

…eatures

(estate): add property offers report and sample data for testing

- Created a new report for estate property offers (PDF format)
- Added sample data for testing new estate property features
- Fixed XML issues related to ir.actions.report and external ID conflicts

- Added a rule to restrict agents' visibility and edit rights to properties
  where they are either the designated salesperson or where no salesperson is
  assigned.
- Guaranteed that estate managers maintain unrestricted access to all property
   records.
- Confirmed that the estate_group_manager role appropriately inherits
   permissions from estate_group_user, ensuring consistent access control.
- Updated access control to restrict agents from creating Property Types and
   Tags.
- Restricted visibility of the Settings menu to estate managers and selected
   groups by applying group-based controls.
- Enforced multi-company rules to ensure data isolation between different
   companies/agencies within the estate module.