feat(limits): initial suggestion for limits

[edvardxyz]

Initial suggestion for how we could add limits.

Do we want to break PARAM_DEFINE API or try and keep backwards compat?
We could use PM_LIMITS flag to conditionally check

The param_t struct grows by 16 bytes 2*8

We could also just make a pre set callback for the user something like:

if (param->pre_set) {
if (param->pre_set(param, i, &value) == false) {
return;
}
} \

We could have both or one of these.

We might also extend union to have 32bits

[Copilot]

Pull request overview

This PR introduces initial infrastructure for parameter value limits by extending param_t with min/max bounds and adding a bounds check into numeric param_set_* paths.

Changes:

• Add param_bound_t union plus min/max fields to param_t (intended to be type-agnostic bounds storage).
• Add a bounds check to generated numeric setters in src/param/param.c.
• Extend PARAM_DEFINE_STATIC_RAM macro signature to accept _min/_max arguments.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
src/param/param.c	Adds bounds enforcement to numeric setters; currently needs compilation and “limits enabled/disabled” semantics resolved.
include/param/param.h	Adds param_t min/max storage and type-mapping macros; updates PARAM_DEFINE_STATIC_RAM API to accept min/max.

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