Update to TG 2.5.x (PR 5416 preview)

[tig]

⚠️ DO NOT MERGE with the pre-release pin in place

This PR pins a vendored pre-release build (Terminal.Gui 2.5.0-tig-remove-cm-followup.2, built from tui-cs/Terminal.Gui#5416) so the port can be validated ahead of the v2.5.0 release. Before merging, once a public 2.5.x package is on nuget.org:

1. Update the Terminal.Gui pin to the public 2.5.x version in: Directory.Build.props (TerminalGuiVersion)
2. Delete local_packages/ and the tgui-pr-5416 package source in nuget.config (delete the file if that source is all it adds)
3. Revert the .gitignore exception for the vendored packages (if present)
4. Re-run build and tests and confirm Terminal.Gui restores from nuget.org

---

Summary

Ports Terminal.Gui.Cli to the Terminal.Gui 2.5.0 preview as part of the v2.5.0 ecosystem-validation gate (tui-cs/Terminal.Gui#5630).

Terminal.Gui PR tui-cs/Terminal.Gui#5416 (ConfigurationManager removal) is not yet merged, so this PR TEMPORARILY vendors a nupkg built from that PR branch:

• local_packages/Terminal.Gui.2.5.0-tig-remove-cm-followup.2.nupkg (+ .snupkg) committed to the repo
• nuget.config adds a tgui-pr-5416 local package source pointing at ./local_packages
• Directory.Build.props pins TerminalGuiVersion to 2.5.0-tig-remove-cm-followup.2
• .gitignore exception so the vendored packages are committed despite the *.nupkg ignore

Pattern precedent: tig/winprint#272 used the same vendored-preview approach for winprint.

2026-08-22: Re-vendored to followup.2 (built from the #5416 branch head e8aba423); the earlier followup.1 package was built from a stale commit (93c3b3d4) that predated config-load defect fixes on that branch.

Code changes / API breaks

None required. Terminal.Gui.Cli does not use any of the APIs removed or changed in 2.5.0:

• No legacy ConfigurationManager / ConfigLocations / [ConfigurationProperty] / scope-type usage (the TuiConfigurationBuilder replacement is therefore not needed here)
• No View.Text overrides (now non-virtual; CWP OnTextChanging/OnTextChanged is the replacement)
• No IAcceptTarget references (moved to Terminal.Gui.Input)

The solution builds warning-free (TreatWarningsAsErrors=true) against the 2.5.0 preview, so the Terminal.Gui.Cli public API surface consumed by downstreams (e.g. tig/winprint) is unchanged.

Test results

Suite	Result
tests/Terminal.Gui.Cli.Tests	24/24 passed
tests/Terminal.Gui.Cli.IntegrationTests	39/39 passed
tests/Terminal.Gui.Cli.SmokeTests	0 tests (project is an empty placeholder — matches develop)

Follow-up

• Once Terminal.Gui 2.5.x ships on nuget.org: swap TerminalGuiVersion to the public version, delete local_packages/, and remove the tgui-pr-5416 source from nuget.config (and the .gitignore exception)

🤖 Generated with Claude Code

https://claude.ai/code/session_01BVbLXNzbus2MTXmiJDBErL

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[chatgpt-codex-connector]

Avoid publishing a dependency that only exists locally

On every push to develop, the existing .github/workflows/release.yml packs Terminal.Gui.Cli and pushes it to NuGet.org, so its generated nuspec will expose this Terminal.Gui version as a dependency. The only copy of that custom prerelease is the repository-local feed, and neither nuget.config nor local_packages/ is available to package consumers; therefore installing each newly published development build from NuGet.org will fail to resolve this dependency. Suppress publishing while this pin is active or publish the preview dependency to a feed that consumers can access.

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