Removed the legacy Explore integration

[ErisDS]

What changed

• removed the old Ember Explore iframe route, modal, service, styles, and React fallback
• removed the dedicated GET /ghost/api/admin/explore/ endpoint and backend service
• removed the built-in Ghost Explore integration, API key, role, and permission from fixtures and existing installs via an idempotent migration
• retained Explore Ping, its settings UI, Explore testimonials, and ghost-explore referral attribution

Testing

• pnpm nx run ghost:build:tsc
• pnpm nx run ghost-admin:lint
• pnpm nx run ghost-admin:build
• pnpm nx run @tryghost/admin:build
• UPDATE_SNAPSHOT=1 pnpm test:single test/e2e-api/admin/roles.test.js
• pnpm test:single test/unit/server/data/schema/integrity.test.js
• pnpm exec vitest -c vitest.config.db.ts test/integration/migrations/migration.test.js --run
• focused ESLint checks for changed Admin and Core files
• migration verified against SQLite by running up twice and down once

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[github-actions]

It looks like this PR contains a migration 👀
Here's the checklist for reviewing migrations:

General requirements

• ⚠️ Tested performance on staging database servers, as performance on local machines is not comparable to a production environment
• Satisfies idempotency requirement (both up() and down())
• Does not reference models
• Filename is in the correct format (and correctly ordered)
• Targets the next minor version
• All code paths have appropriate log messages
• Uses the correct utils
• Contains a minimal changeset
• Does not mix DDL/DML operations
• Tested in MySQL and SQLite

Schema changes

• Both schema change and related migration have been implemented
• For index changes: has been performance tested for large tables
• For new tables/columns: fields use the appropriate predefined field lengths
• For new tables/columns: field names follow the appropriate conventions
• Does not drop a non-alpha table outside of a major version

Data changes

• Mass updates/inserts are batched appropriately
• Does not loop over large tables/datasets
• Defends against missing or invalid data
• For settings updates: follows the appropriate guidelines

[nx-cloud]

🤖 Nx Cloud AI Fix

Ensure the fix-ci command is configured to always run in your CI pipeline to get automatic fixes in future runs. For more information, please see https://nx.dev/ci/features/self-healing-ci

---

View your CI Pipeline Execution ↗ for commit f28c732

Command	Status	Duration	Result
nx run ghost:test:ci:integration	✅ Succeeded	3m 3s	View ↗
nx run @tryghost/admin:test:acceptance	✅ Succeeded	7m 20s	View ↗
nx run ghost:test:integration	✅ Succeeded	3m 10s	View ↗
nx run-many -t test:unit -p @tryghost/admin,ghost	✅ Succeeded	4m 42s	View ↗
nx run ghost:test:legacy	✅ Succeeded	2m 53s	View ↗
nx run ghost:test:e2e	✅ Succeeded	2m 45s	View ↗
nx run ghost-admin:test	✅ Succeeded	2m 47s	View ↗
nx run ghost-monorepo:lint:boundaries	✅ Succeeded	22s	View ↗
Additional runs (3)	✅ Succeeded	...	View ↗

💡 Verify your cache is correct by running tasks in a sandbox. Read docs ↗

---

☁️ Nx Cloud last updated this comment at 2026-08-11 15:19:28 UTC

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.46%. Comparing base (95b89f6) to head (f28c732).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #29880      +/-   ##
==========================================
+ Coverage   75.42%   75.46%   +0.03%     
==========================================
  Files        1606     1594      -12     
  Lines      140657   140382     -275     
  Branches    17431    17377      -54     
==========================================
- Hits       106095   105934     -161     
+ Misses      33514    33379     -135     
- Partials     1048     1069      +21     

Flag	Coverage Δ
admin-tests	56.39% <ø> (+0.41%)	⬆️
e2e-tests	77.54% <ø> (-0.04%)	⬇️

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