chore: migrate references from githubnext to github organization

[Copilot]

Migrates all repository, container registry, and documentation references from githubnext to github organization.

Changes

• Repository references: githubnext/gh-aw-firewall → github/gh-aw-firewall
• gh-aw references: githubnext/gh-aw → github/gh-aw
• MCP gateway: githubnext/gh-aw-mcpg → github/gh-aw-mcpg
• Container registry: ghcr.io/githubnext/ → ghcr.io/github/
• Documentation site: githubnext.github.io/gh-aw → github.github.io/gh-aw

62 files updated across install scripts, source code, tests, docs, workflows, and config files.

Preserved references

The following githubnext references are intentionally unchanged:

• githubnext/agentics (separate repository)
• githubnext.com (GitHub Next website)
• githubnext.github.io (external site, not gh-aw docs)
• Documentation examples using /githubnext/* as URL path patterns

Original prompt

Change all the reference of https://github.com/githubnext/gh-aw-firewall to https://github.com/github/gh-aw-firewall and gh-aw from githubnext to github as well as the gh-aw-mcpg

Custom agent used: agentic-workflows
GitHub Agentic Workflows (gh-aw) - Create, debug, and upgrade AI-powered workflows with intelligent prompt routing

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[github-actions]

📰 DEVELOPING STORY: Smoke Copilot reports failed. Our correspondents are investigating the incident...

[github-actions]

Chroot tests failed Smoke Chroot failed - See logs for details.

[github-actions]

💫 TO BE CONTINUED... Smoke Claude failed! Our hero faces unexpected challenges...

[github-actions]

✅ Coverage Check Passed

Overall Coverage

Metric	Base	PR	Delta
Lines	78.45%	78.45%	➡️ +0.00%
Statements	78.52%	78.52%	➡️ +0.00%
Functions	78.01%	78.01%	➡️ +0.00%
Branches	72.49%	72.49%	➡️ +0.00%

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Coverage comparison generated by scripts/ci/compare-coverage.ts

[Copilot]

Pull request overview

This PR performs a comprehensive migration of all repository, container registry, and documentation references from the githubnext organization to the github organization across 62 files. The migration is part of transitioning the gh-aw-firewall project to the official GitHub organization.

Changes:

• Updated repository references from githubnext/gh-aw-firewall to github/gh-aw-firewall
• Migrated gh-aw references from githubnext/gh-aw to github/gh-aw
• Updated MCP gateway references from githubnext/gh-aw-mcpg to github/gh-aw-mcpg
• Changed container registry paths from ghcr.io/githubnext/ to ghcr.io/github/
• Updated documentation site URLs from githubnext.github.io/gh-aw to github.github.io/gh-aw

Reviewed changes

Copilot reviewed 62 out of 62 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/integration/*.test.ts	Updated PR and registry references in test comments
src/*.ts	Updated default registry paths and documentation examples
docs/*.md	Updated installation URLs, repository links, and usage examples
docs-site/**/*.md	Updated documentation site references and live site URLs
install.sh	Updated repository references in installer script
action.yml	Updated repository and registry references in GitHub Action
README.md	Updated repository links and project references
scripts/*.sh	Updated default repository references
containers/agent/*.sh	Updated PR reference in Docker stub script
.github/workflows/*.yml	Updated all action references, MCP gateway containers, and gh-aw installation commands
.github/aw/*.md	Updated schema IDs, installation instructions, and canonical upstream references
.github/agents/*.md	Updated repository references and canonical upstream URLs
CLAUDE.md, AGENTS.md	Updated registry paths and PR references in developer documentation

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