[ADD] real_estate: property management and offer system#1100

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isgos-odoo wants to merge 11 commits intoodoo:19.0from

odoo-dev:19.0-estate-tutorial-isgos

Commits on Jan 12, 2026

[IMP] real_estate: Add computed fields, onchanges and business logic
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[IMP] real_estate: add constraints and data consistency
isgos-odoo
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Commits on Jan 16, 2026

[IMP] estate: add constraints, search logic, and refactor code (Ch 11)
isgos-odoo
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Commits on Jan 20, 2026

[IMP] real_estate: Add salesperson inheritance and override methods
isgos-odoo
committed

Commits on Jan 22, 2026

[IMP] estate: add kanban view and invoicing automation (ch 13-14)
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