ModelingToolkitBase-v1.69.1

ModelingToolkitBase ModelingToolkitBase-v1.69.1

Diff since ModelingToolkitBase-v1.69.0

• Keep the system tspan through SDE structural simplification (#5091)
• Fixes to better support 32-bit builds (#5060)
• Add 32-bit InterfaceI CI lane via test_groups.toml (#5092)
• Mark InitializationMetadata inactive for Enzyme (#5094)
• Require Symbolics 7.39.1 (32-bit hash fix) (#5096)
• Qualify unbound_inputs @ref in the interactive simulation tutorial (#5099)

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🤖 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:

• Fixes to better support 32-bit builds (#5060) (@Drvi)
• Keep the system tspan through SDE structural simplification (#5091) (@ChrisRackauckas-Claude)
• Add 32-bit InterfaceI CI lane via test_groups.toml (#5092) (@ChrisRackauckas-Claude)
• Mark InitializationMetadata inactive for Enzyme (#5094) (@SebastianM-C)
• Require Symbolics 7.39.1 (32-bit hash fix) (#5096) (@ChrisRackauckas-Claude)
• Qualify unbound_inputs @ref in the interactive simulation tutorial (#5099) (@ChrisRackauckas-Claude)
• Release ModelingToolkit 11.42.1 (#5103) (@ChrisRackauckas)
• Release ModelingToolkitBase 1.69.1 (#5104) (@ChrisRackauckas)