Migrate AURA CRM to Twenty App SDK

[JavierRibaldelRio]

Summary

• Removes the legacy Frappe CRM app (aura/ doctypes, hooks, fixtures, services) and replaces it with a Twenty App SDK project (objects, fields, front components, page layouts, navigation menu items).
• Rebuilds core AURA CRM functionality on the new SDK: seasons on opportunities, calls (company/person/opportunity), company sector/specialty/NIF fields, opportunity products area, and the partner tiers/advantages system (objects, fields, front components, page layouts).
• Updates tooling and CI/CD for the new stack (package.json, CI/CD workflows, oxlint, tsconfig, vitest config, yarn.lock).

Test plan

• yarn twenty dev boots the app locally without errors
• Verify seasons, calls, and company/opportunity fields appear correctly on records
• Verify partner tiers and partner advantages views/pages render and function
• Verify opportunity products area works end-to-end