feat: remove Plugin Certification Program from Extensions

[its-mitesh-kumar]

Description

• Remove the CERTIFIED_BY annotation from ExtensionsAnnotation enum
• Remove certification badge rendering from Badges.tsx
• Remove certified filter logic from useFilteredPlugins, useFilteredSupportTypes, and useFilteredPluginFacet hooks
• Remove certified handling from ExtensionsPluginFilter UI
• Remove certified color constant
• Remove certification-related translation keys from all 6 locales (en, de, es, fr, it, ja)
• Remove certified-by column from CLI CSV export
• Remove certified badge e2e test and page object references
• Remove extensions.backstage.io/certified-by annotation from example YAML files
• Remove Certification section from plugin catalog docs and CLI docs
• Remove certified-by facet from Bruno API file
• Update API reports (report.api.md, report-alpha.api.md)

Fixed

• Jira : https://redhat.atlassian.net/browse/RHIDP-14170

UI before changes

Screen.Recording.2026-05-28.at.2.36.09.PM.mov

UI after changes

Screen.Recording.2026-05-28.at.4.30.13.PM.mov

Test plan

• Extensions Catalog loads without errors
• Support type filter dropdown no longer shows "Certified" option
• Plugins previously marked as certified still appear in the catalog
• GA, Custom, Tech Preview, Dev Preview, and Community badges still render correctly
• CLI export-csv command runs without the certified-by column
• E2E tests pass with the certified test removed

✔️ Checklist

• A changeset describing the change and affected packages. (more info)
• Added or Updated documentation
• Tests for new functionality and regression tests for bug fixes
• Screenshots attached (for UI changes)

[rhdh-gh-app]

Important

This PR includes changes that affect public-facing API. Please ensure you are adding/updating documentation for new features or behavior.

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
@red-hat-developer-hub/extensions-cli	workspaces/extensions/packages/cli	minor	v0.17.1
@red-hat-developer-hub/backstage-plugin-extensions-common	workspaces/extensions/plugins/extensions-common	minor	v0.17.1
@red-hat-developer-hub/backstage-plugin-extensions	workspaces/extensions/plugins/extensions	minor	v0.17.1

[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

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.99%. Comparing base (86e89d3) to head (1dcee55).
⚠️ Report is 46 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3247      +/-   ##
==========================================
+ Coverage   60.97%   60.99%   +0.02%     
==========================================
  Files        2097     2097              
  Lines       65147    65119      -28     
  Branches    17022    17002      -20     
==========================================
- Hits        39723    39722       -1     
+ Misses      24844    24817      -27     
  Partials      580      580              

Flag	Coverage Δ		*Carryforward flag
adoption-insights	83.58% <ø> (ø)		Carriedforward from 86e89d3
ai-integrations	70.03% <ø> (ø)		Carriedforward from 86e89d3
app-defaults	69.60% <ø> (ø)		Carriedforward from 86e89d3
augment	69.36% <ø> (ø)		Carriedforward from 86e89d3
bulk-import	72.86% <ø> (ø)		Carriedforward from 86e89d3
cost-management	16.49% <ø> (ø)		Carriedforward from 86e89d3
dcm	32.85% <ø> (ø)		Carriedforward from 86e89d3
extensions	62.24% <0.00%> (+0.44%)	⬆️
global-floating-action-button	74.30% <ø> (ø)		Carriedforward from 86e89d3
global-header	61.68% <ø> (ø)		Carriedforward from 86e89d3
homepage	50.95% <ø> (ø)		Carriedforward from 86e89d3
konflux	91.01% <ø> (ø)		Carriedforward from 86e89d3
lightspeed	68.34% <ø> (ø)		Carriedforward from 86e89d3
mcp-integrations	81.59% <ø> (ø)		Carriedforward from 86e89d3
orchestrator	36.36% <ø> (ø)		Carriedforward from 86e89d3
quickstart	62.64% <ø> (ø)		Carriedforward from 86e89d3
sandbox	79.56% <ø> (ø)		Carriedforward from 86e89d3
scorecard	83.58% <ø> (ø)		Carriedforward from 86e89d3
theme	64.54% <ø> (ø)		Carriedforward from 86e89d3
translations	8.49% <ø> (ø)		Carriedforward from 86e89d3
x2a	78.28% <ø> (ø)		Carriedforward from 86e89d3

*This pull request uses carry forward flags. Click here to find out more.

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[HusneShabbir]

Please review the E2E changes made here and provide your approval accordingly. @sanketpathak