v2.3.0

SparseIR v2.3.0

Diff since v2.2.0

Merged pull requests:

• docs: route release work to the shared sparse-ir-release skill (#160) (@shinaoka)
• Add a v1 to v2 migration guide to README.md and llms.txt (#162) (@shinaoka)
• test: scale the DLR round-trip axis tolerance; fix the remaining overlap broadcasts (#167) (@shinaoka)
• chore: batch the pending action bumps, CEnum 1 compat and ecosystem links (#168) (@shinaoka)
• Check the FMA requirement of libsparseir at load (#164) (#170) (@shinaoka)
• Add warmup(basis) for the first threaded use; document the MPI signal pitfall (#148) (#171) (@shinaoka)
• Require libsparseir_jll 0.15 and release 2.3.0 (#172) (@shinaoka)

Closed issues:

• Concurrent fit calls panic with RefCell already borrowed (#120)
• Fresh Linux install fails to load without system OpenBLAS (undefined symbol: dgemm_) (#128)
• README/guide docs are out of sync with current overlap API and Julia compat (#129)
• Pkg.build writes full environment, including secrets, to deps/build.log (#130)
• Add llms.txt and AI-agent documentation (following tensor4all/tenferro-rs) (#152)
• Version 2 does not work with Fermions.jl. (#161)