Migrate project documentation templates

[Trawis]

Pull Request

Summary

• Migrates the project-owned README, changelog, feature list, and architecture overview to the current documentation structure.
• Aligns the feature and architecture docs with the current trainer source and workflows.

Changes

• Restructured README sections for setup, build, usage, documentation, Git Flow, CI/CD, maintainers, and license status.
• Converted CHANGELOG.md to a curated newest-first structure with an Unreleased entry for this documentation work.
• Updated FEATURES.md to reflect currently wired trainer buttons, toggles, dropdowns, and employee editing tools.
• Replaced the architecture scaffold with a verified technical overview and removed leftover template prose.

Requirements / Spec Alignment

• FSD reviewed if provided
• TSD reviewed if provided
• GDD reviewed if game-related and provided
• Acceptance criteria / issue / ticket reviewed if provided
• Conflicts or unclear requirements reported

Documentation

• README.md updated if needed
• CHANGELOG.md updated if needed
• FEATURES.md updated if needed
• docs/ updated if needed
• No invented features, claims, screenshots, benchmarks, or compatibility guarantees

Validation

• Build ran or skip reason documented
• Unit tests added/updated where feasible
• Tests ran or skip reason documented
• Smoke/manual check ran where practical
• Format/lint checks ran where configured
• Implementation rechecked against task/specs/changed files

Branching / Merge Safety

• Work was done on a task branch
• Branch name follows feature/<short-kebab-description>, release/<version>, or hotfix/<short-kebab-description>
• Branch family follows strict Git Flow
• PR targets the correct Git Flow branch
• No auto-merge requested/performed
• No branch protection bypass requested/performed

Notes / Risks

• dotnet build "Trainer v5 - Beta 1.sln" passes with the existing CS0162 warning in TrainerBehaviour.cs.
• dotnet test "Trainer v5 - Beta 1.sln" exits cleanly, but no test projects exist in the solution.
• git diff --check passes for the PR diff.
• dotnet format --verify-no-changes --no-restore is still blocked by existing repository-wide C# whitespace, line-ending, and encoding findings outside this docs change.

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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