feat: Replace Agent Installers page with Agent Install Instructions page

[HollererJ]

Replace the agent-installers download page with a new Install Instructions page that fetches and displays installation instructions from the agent-controller API. The page supports:

• Multi-language (uses current GSA language setting)
• Multiple agent controllers (dropdown when more than one available)
• Dynamic content from agent-controller's install-instructions endpoint
• Copy-to-clipboard functionality for code blocks

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

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OpenSSF Scorecard

Package	Version	Score	Details
npm/@types/dompurify	3.0.5	🟢 6.8	Details Check Score Reason Maintained 🟢 10 30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10 Code-Review 🟢 7 Found 23/30 approved changesets -- score normalized to 7 Packaging ⚠️ -1 packaging workflow not detected CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Security-Policy 🟢 10 security policy file detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions License 🟢 9 license file detected Signed-Releases ⚠️ -1 no releases found Branch-Protection ⚠️ -1 internal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md Vulnerabilities 🟢 10 0 existing vulnerabilities detected Binary-Artifacts 🟢 10 no binaries found in the repo Pinned-Dependencies 🟢 8 dependency not pinned by hash detected -- score normalized to 8 SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0 Fuzzing ⚠️ 0 project is not fuzzed
npm/@types/trusted-types	2.0.7	🟢 6.8	Details Check Score Reason Maintained 🟢 10 30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10 Code-Review 🟢 7 Found 23/30 approved changesets -- score normalized to 7 Packaging ⚠️ -1 packaging workflow not detected CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Security-Policy 🟢 10 security policy file detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions License 🟢 9 license file detected Signed-Releases ⚠️ -1 no releases found Branch-Protection ⚠️ -1 internal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md Vulnerabilities 🟢 10 0 existing vulnerabilities detected Binary-Artifacts 🟢 10 no binaries found in the repo Pinned-Dependencies 🟢 8 dependency not pinned by hash detected -- score normalized to 8 SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0 Fuzzing ⚠️ 0 project is not fuzzed
npm/dompurify	3.3.1	🟢 6	Details Check Score Reason Packaging ⚠️ -1 packaging workflow not detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions Maintained 🟢 10 17 commit(s) and 7 issue activity found in the last 90 days -- score normalized to 10 Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Binary-Artifacts 🟢 10 no binaries found in the repo Code-Review 🟢 6 Found 10/15 approved changesets -- score normalized to 6 Security-Policy 🟢 10 security policy file detected CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Pinned-Dependencies 🟢 3 dependency not pinned by hash detected -- score normalized to 3 License 🟢 9 license file detected Fuzzing ⚠️ 0 project is not fuzzed Signed-Releases ⚠️ -1 no releases found Branch-Protection 🟢 3 branch protection is not maximal on development and all release branches Vulnerabilities 🟢 3 7 existing vulnerabilities detected SAST 🟢 10 SAST tool is run on all commits

Scanned Files

• package-lock.json

[Copilot]

Pull request overview

Replaces the existing “Agent Installers” download route with a new “Agent Install Instructions” page that pulls HTML installation instructions from the agent-controller API (with language support, controller selection, and copy-to-clipboard behavior).

Changes:

• Added AgentInstallInstructionsPage that discovers agent-controller scanners, fetches install instructions HTML, and renders it.
• Added controller selection UI when multiple controllers are available.
• Updated routing so /agent-installers now loads the new instructions page.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 7 comments.

File	Description
src/web/pages/agent-remote-installer/AgentInstallInstructionsPage.tsx	New page: fetch controllers + install instructions HTML, render instructions, add copy handling.
src/web/Routes.tsx	Routes /agent-installers to the new instructions page.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.04%. Comparing base (1079969) to head (ff7c815).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5124   +/-   ##
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  Coverage   77.04%   77.04%           
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  Files        1170     1170           
  Lines       30492    30492           
  Branches     9120     9120           
=======================================
  Hits        23494    23494           
  Misses       6258     6258           
  Partials      740      740           

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[bjoernricks]

Not sure how co-pilot got activated for review :-/

[HollererJ]

Not sure how co-pilot got activated for review :-/

Not by me ....

[bjoernricks]

Hi, i have serious doubts of this "feature" first of all this hasn't been discussed beforehand were we could have talked about the details in possible solutions. Just dropping the current agent install page with something else is a bit frustration on my side.

But also I have a major concern with loading some HTML content from an URL that is out of the control of the GEA team and having to maintain this interface. I would be ok if that URL is returning static string content but HTML is a no-go for me in the current situation. If you need html content it should be implemented at the GSA in react with styled-components for styling. If that isn't possible we could also add links for opening a new page with installation instructions externally.