Allow FlexiChains 0.7

[seabbs-bot]

This is entirely from an agent so do not review until I have pinged for review as I will do a first pass

Widens the FlexiChains weakdep compat to include 0.7.

Needed so CensoredDistributions can resolve alongside FlexiChains 0.7 (the v0.7 branch of JuliaBayes/FlexiChains.jl, pinned by Wren.jl via a sources entry), where versions above 0.2.11 are otherwise excluded. Staying on 0.2.11 loses the delay tail-derivative fixes: it gives finite log densities but NaN gradients for far-tail interval-censored observations, which kills NUTS warmup.

FlexiChains sits in [weakdeps] purely for compat bounding (there is no FlexiChains extension), so the validation available at this level is co-resolution and precompilation: a fresh environment with this branch dev'd plus FlexiChains at rev v0.7 resolves (co-resolving FlexiChains 0.7.0) and precompiles, while the unwidened bound is unsatisfiable.

This was opened by a bot. Please ping @seabbs for any questions.

[github-actions]

Try this Pull Request!

Option 1: Julia Package Manager

Open Julia and type:

import Pkg
Pkg.activate(temp=true)
Pkg.add(url="https://github.com/EpiAware/CensoredDistributions.jl", rev="flexichains-0.7-compat")
using CensoredDistributions

Option 2: Local Checkout

If you have the repo locally:

git checkout flexichains-0.7-compat
julia --project=. -e "using Pkg; Pkg.instantiate()"

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
ad-enzyme-forward	45.30% <ø> (ø)
ad-enzyme-reverse	45.30% <ø> (ø)
ad-forwarddiff	40.20% <ø> (ø)
ad-mooncake-forward	40.20% <ø> (ø)
ad-mooncake-reverse	40.20% <ø> (ø)
ad-reversediff	40.51% <ø> (ø)
unit	95.83% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[github-actions]

📖 Documentation preview is ready!

View the docs for this PR at: https://EpiAware.github.io/CensoredDistributions.jl/previews/PR935/

This preview will be updated automatically when you push new commits.