Add mizer 3.2 announcement blog post

[gustavdelius]

Adds a blog post announcing the mizer 3.2 release.

The post is framed around the two reasons for a release so soon after 3.1:

• Consistent resource setting — the resource setters had grown inconsistent, balancing (and silently discarding scalar edits) when they shouldn't. The post explains the old behaviour, the fix that makes them behave like species_params<-, and points to the Upgrading mizer vignette.
• Extensions that chain in any order — the static sibling-of-MizerParams marker classes prevented combining two extensions. The post explains the flaw and the dynamic-marker-class fix, with a worked mizerReef + mizerMR example drawn from mizerReef's multiple-resources.Rmd vignette.

It closes with a short roundup of the smaller 3.2 additions (steadyNewton(), adjustSizeGrid(), project() callback, nicer printing, cheatsheets) and an upgrading note.

Notes:

• Written as a distill .Rmd matching the other posts; code chunks are illustrative (eval = FALSE) so the post renders without needing the extension packages installed.
• Placeholder URLs used for the 3.1 announcement and the upgrading.html vignette — worth confirming the published slugs.

🤖 Generated with Claude Code