refactor(core): improve iOS log messages from stdout/stderr

[lucasfernog]

move the stdout/stderr forward logic to Swift so it does not consume a Rust thread and never deadlocks on the simulator

I had to work on this because i'm facing #12172 again on latest Xcode (26.1)

[lucasfernog]

another benefit is that the Xcode console now properly shows all messages (OSLog events and stdout/stderr)

[github-actions]

Package Changes Through 9e0bbff

There are 3 changes which include tauri-bundler with patch, tauri with patch, tauri-macros with patch

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
tauri-bundler	2.7.1	2.7.2
tauri-macros	2.5.0	2.5.1
tauri	2.9.1	2.9.2
@tauri-apps/cli	2.9.1	2.9.2
tauri-cli	2.9.1	2.9.2

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[will3942]

@lucasfernog This is great and affecting us locally - would be great to see this shipped.

[FabianLars]

@will3942 did you try it in your project? did it work well?

[lucasfernog]

sometimes it logs stdout/stderr messages twice, I didn't have much more time to investigate. But at least it never freezes, which is really annoying.

[FabianLars]

(untested)

[FabianLars]

sometimes it logs stdout/stderr messages twice, I didn't have much more time to investigate.

probably not too much of an issue, so can be looked into later imo