ModelingToolkitBase-v1.70.0

ModelingToolkitBase ModelingToolkitBase-v1.70.0

Diff since ModelingToolkitBase-v1.69.3

• Add adtype passthrough to OptimizationFunction/OptimizationProblem (#5110)

Non-breaking feature release; the repository was already at a version ahead of the registry.

---

🤖 Posted by an AI agent — harness: Claude Code, model: claude-opus-5[1m]. Chris asked for this release.

https://claude.ai/code/session_014FEzNTLFutCmTEAZ3zBg5R

Merged pull requests:

• Add the limited(actual, limiter) operator: symbolic PCNR iterate limiting for nonlinear solves (#4774) (@ChrisRackauckas-Claude)
• Add adtype passthrough to OptimizationFunction/OptimizationProblem constructors (#5110) (@ChrisRackauckas-Claude)