[ADD] estate: implement core real estate property management module

[shib-odoo]

Core Functionality:

• Created base models for property listings with fields for pricing, descriptions , and status tracking
• Implemented property type categorization (House, Apartment etc.)
• Added tagging system for property characteristics (Cozy, Renovated etc.)
• Developed offer management system to track buyer proposals

Technical Implementation:

1. Models:

   • estate.property (main listing model)
   • estate.property.type (categorization)
   • estate.property.tag (characteristics)
   • estate.property.offer (purchase offers)

2. Relationships:

   • Many2one: Property → Type, Buyer, Salesperson
   • Many2many: Property ↔ Tags
   • One2many: Property → Offers

3. Security:

   • Configured access rights for all models
   • Set appropriate permissions for CRUD operations

4. UI/UX:

   • Custom list view with key property attributes
   • Detailed form view with tabbed interface
   • Advanced search with filters and grouping
   • Intuitive menu structure

5. Business Logic:

   • Default values (salesperson = current user)
   • Field constraints (read-only selling price)
   • Non-copyable fields (availability date)

task-001 (Chapter 1–7 Odoo 18 Developer Tutorial)

[robodoo]