V0.1.2

[r3dlight]

Summary of changes

Typestate & API design

• Keep the Mapped / Unmapped typestate model, but make it strict and meaningful
• Remove redundant runtime state (mapped_to, Option)
• Prevent invalid operations (e.g. mapping/unmapping in the wrong state)
• Code cleanup under clippy --pedantic
• Remove duplicated code between Mapped and Unmapped implementations
• Centralize common logic in a single generic impl
• Simplify the public API

Information handling

• Replace Option with an explicit cache + validity flag
• Avoid repeated syscalls when information is already available
• Ensure cache invalidation after operations that change permissions or mapping state

Documentation

• Document invariants, typestate transitions, and safety guarantees
• Reduce redundant error lists while keeping behavior explicit

[PThierry]

ack for me, remember to generate a release (tag+release) once merged. I'm not fan of toml vs git tag duplication as it can generate divergences