Add delivery pipeline and ceplugin template

[AriusII]

Context

This is the delivery PR at the top of the CheatEngine.Client v0.1 stacked implementation.

Why this exists

After contracts, Core, Fluent, and Hosting/DI are available, the repository needs a reproducible delivery path that proves package consumption, template generation, AOT compatibility, and the intended architecture to contributors.

What changed

• Replaces the legacy CheatEngine.Client.Binding projects with the final Core project layout in the solution.
• Adds the CheatEngine.Client.Templates package and the ceplugin template as the canonical executable example.
• Adds package-consumption and template-installation smoke scripts, including the negative CECLIENT001 case.
• Adds a win-x64 Native AOT probe for the complete managed Client graph; it does not claim a Cheat Engine Native AOT plugin is loadable.
• Reworks GitHub Actions into reusable CI plus explicit main and pull-request entry workflows.
• Rewrites the repository README and records architecture, lifecycle, package/AOT, and capability decisions in ADRs.

Template policy

Generated plugins reference both CheatEngine.Client and CheatEngine.SDK directly, configure optional appsettings.json explicitly with no file watcher, and use explicit Client modules rather than reflection or a Generic Host.

Validation

Solution build:        0 warnings, 0 errors
Solution tests:        Passed 207, Failed 0, Skipped 0
Package smoke:         passed (including CECLIENT001 negative case)
Template smoke:        passed (install, dry-run, instantiate, restore, Release build)
Native AOT probe:      publish and execution passed for win-x64

Dependency

Base branch: client-hosting-and-di / #4. Merge after #4, then retarget the stacked PRs as their predecessors merge.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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[AriusII]

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Pull request is closed.

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