Add explicit API versioning strategy and route lifecycle policy

[robertocarlous]

Why
As the backend grows, route compatibility becomes harder to manage. A documented versioning policy would help the team deprecate endpoints safely and avoid accidental breaking changes.

Acceptance criteria

• Define how versioned routes are introduced.
• Define deprecation and removal timelines.
• Document how breaking schema or payload changes should be handled.

[Tobi-8]

oh, i have done this exact same thing before.
kindly assign

[femiolutayo]

I want to apply for this issue because a clear API versioning and lifecycle policy is essential for maintaining backward compatibility, reducing integration risk, and enabling sustainable growth of the backend platform. With my experience working with backend APIs and technical documentation, I can define a practical versioning strategy, establish clear deprecation and removal timelines, and document best practices for handling breaking schema and payload changes so that future updates remain predictable for both developers and API consumers.

[Banx17]

Good day team, I would love to work with you on this issue, please kindly assign.