fix(integrations): fix Slack integration modal after redirect

[bakirFS]

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Changes

Closes #8359

Fixed the modal showing the project picker instead of channel picker after Slack redirect.

How did you test this code?

Tested it manually, and disable changing the project after the Slack redirect since you can only connect to projects you approved.

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3 Skipped Deployments

Project	Deployment	Actions	Updated
docs	Ignored		Sep 16, 2026 1:50pm UTC
flagsmith-frontend-preview	Ignored		Sep 16, 2026 1:50pm UTC
flagsmith-frontend-staging	Ignored		Sep 16, 2026 1:50pm UTC

[coderabbitai]

📝 Walkthrough

Walkthrough

IntegrationList now validates the configure URL parameter against available integrations and passes the URL project parameter to CreateEditIntegration. The OAuth return URL includes the project when present. The project selector becomes read-only after authorisation. The environment selector becomes read-only only for existing integrations.

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Severity of issue fixed: Medium

Merge Risk: 🟡 Moderate · up to c054d

Users can submit a Slack channel from the wrong environment, so the environment should be locked or channel state refreshed before merge.

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[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-8542	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-8542	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-8542	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-8542	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-8542	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-8542	Finished ✅	Results ✅

[github-actions]

✅ private-cloud · depot-ubuntu-latest-arm-16 — run #20489 (attempt 2)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 3 passed

Details

 3 tests across 3 suites
 35.6 seconds
 c054d08
 🔄 Run: #20489 (attempt 2)

🗂️ Previous results

❌ private-cloud · depot-ubuntu-latest-arm-16 — run #20489 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 1 failed
 1 passed

Details

 2 tests across 2 suites
 1 minute, 20 seconds
 c054d08
 📦 Artifacts: View test results and HTML report
🔄 Run: #20489 (attempt 1)

Failed tests

firefox › tests/environment-permission-test.pw.ts › Environment Permission Tests › Environment-level permissions control access to features, identities, and segments @enterprise

✅ private-cloud · depot-ubuntu-latest-16 — run #20489 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 2 passed

Details

 2 tests across 2 suites
 36.2 seconds
 c054d08
 🔄 Run: #20489 (attempt 1)

✅ oss · depot-ubuntu-latest-16 — run #20489 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 1 passed

Details

 1 test across 1 suite
 34.5 seconds
 c054d08
 🔄 Run: #20489 (attempt 1)

✅ oss · depot-ubuntu-latest-arm-16 — run #20489 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 2 passed

Details

 2 tests across 2 suites
 36.5 seconds
 c054d08
 🔄 Run: #20489 (attempt 1)

[github-actions]

Visual Regression

19 screenshots compared. See report for details.
View full report

[coderabbitai]

Actionable comments posted: 1

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Advanced

Run ID: 79e64a3d-35c0-4de5-a3a0-b71c0ba0d26e

📥 Commits

Reviewing files that changed from the base of the PR and between 7efa778 and c054d08.

📒 Files selected for processing (2)

• frontend/web/components/IntegrationList.tsx
• frontend/web/components/modals/CreateEditIntegrationModal.tsx

Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review.

[Zaimwa9]

Just one props to remove otherwise lgtm

[Zaimwa9]

happy to approve, thanks for looking into this