Update branding for migration

[mingxwa]

• Transfer repo branding and links to ngcpp/proxy.
• Update ownership language and policies (Code of Conduct, Security, Support) for ngcpp stewardship.
• Refresh copyright notices to reflect Microsoft ownership from 2022–2026.

[Copilot]

Pull request overview

This PR migrates the repository's branding and ownership from Microsoft to the Next Gen C++ Foundation (ngcpp). The changes reflect the transition of the project from Microsoft stewardship (2018-Feb 2026) to ngcpp maintenance while preserving Microsoft's copyright and historical contributions.

Changes:

• Updated all copyright notices from "Copyright (c) Microsoft Corporation" to "Copyright (c) 2022-2026 Microsoft Corporation" across all source files, headers, and benchmarks
• Migrated all repository URLs from microsoft/proxy to ngcpp/proxy and updated documentation site URLs from microsoft.github.io/proxy to ngcpp.github.io/proxy
• Replaced governance documents (Code of Conduct, Security, Support) with ngcpp-specific versions using Contributor Covenant and community-based support model

Reviewed changes

Copilot reviewed 34 out of 35 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tools/report_generator/main.cpp	Updated copyright notice to include year range 2022-2026
tests/.cpp, tests/.h	Updated copyright notices across all test files
include/proxy/**/*.h	Updated copyright notices in all header files
docs/resources/icon.png	Replaced project icon/logo with new branding
docs/faq.md	Updated project history narrative and repository links
mkdocs/overrides/main.html	Updated Clarity analytics tracking ID
mkdocs.yml	Updated site URLs, repository URL, and copyright notice
meson.build	Updated project URL to ngcpp.github.io
benchmarks/.cpp, benchmarks/.h	Updated copyright notices
SUPPORT.md	Replaced Microsoft template with ngcpp community support structure
SECURITY.md	Replaced Microsoft MSRC process with ngcpp security advisory process
README.md	Updated all repository links, added migration history, replaced Microsoft CoC with Contributor Covenant, removed Microsoft trademarks section
LICENSE	Updated copyright notice with year range
CODE_OF_CONDUCT.md	Replaced Microsoft Open Source CoC with Contributor Covenant
.github/workflows/bvt-report.yml	Updated repository references in workflow

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[Copilot]

There is an inconsistency in comma placement compared to the FAQ. In the FAQ (line 24), the text reads "from 2018 to Feb 2026, has been" without "and", while in README (line 19) it reads "from 2018 to Feb 2026, and has been". These should be consistent. The README version with "and" is grammatically more correct.

Suggested change

"Proxy" was created by Microsoft engineers and incubated at Microsoft from 2018 to Feb 2026, has been used in the Windows operating system since 2022. It is now maintained by the Next Gen C++ Foundation (ngcpp). For 40 years, the inheritance-based polymorphism paradigm has been the only scalable solution for runtime polymorphism in C++. However, a "virtual function" is no longer the optimal choice for runtime polymorphism today, and new languages with better paradigms, like [traits in Rust](https://doc.rust-lang.org/book/ch10-02-traits.html), are emerging. "Proxy" is our latest and greatest solution for generic runtime polymorphism in C++. It is easy to integrate and makes C++ feel like a brand new language when dealing with runtime abstractions.

"Proxy" was created by Microsoft engineers and incubated at Microsoft from 2018 to Feb 2026, and has been used in the Windows operating system since 2022. It is now maintained by the Next Gen C++ Foundation (ngcpp). For 40 years, the inheritance-based polymorphism paradigm has been the only scalable solution for runtime polymorphism in C++. However, a "virtual function" is no longer the optimal choice for runtime polymorphism today, and new languages with better paradigms, like [traits in Rust](https://doc.rust-lang.org/book/ch10-02-traits.html), are emerging. "Proxy" is our latest and greatest solution for generic runtime polymorphism in C++. It is easy to integrate and makes C++ feel like a brand new language when dealing with runtime abstractions.