Update setup flow guidelines

[nevyangelova]

Summary

Update setup guidelines for clearer and up-to-date instructions

Ticket Link

https://mattermost.atlassian.net/browse/MM-67777
https://mattermost.atlassian.net/browse/MM-67658

Change Impact: 🟢 Low

Reasoning: This PR updates instructional text and setup guidance in the OAuth configuration and webhook setup steps. The changes are purely documentation clarifications that do not alter any functional code, authentication mechanisms, or core business logic.

Regression Risk: Negligible. The modifications are guidance text updates in the setup UI flow. No functional code paths, authentication logic, or data handling are affected. Existing integrations continue to work unchanged, and the instructions simply provide clearer guidance for new configurations.

QA Recommendation: Manual QA can be minimal or skipped. These are documentation updates with no functional impact. A brief UI walkthrough to verify the updated text displays correctly in the setup flow wizard would be sufficient. No functional regression testing is necessary as no code behavior has changed.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI (base), Organization UI (inherited)

Review profile: CHILL

Plan: Pro

Run ID: 193c3780-8e5d-4f75-a8b8-2e56a9066705

📥 Commits

Reviewing files that changed from the base of the PR and between eedbb1f and bd20687.

📒 Files selected for processing (1)

• server/setup_flow.go

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📝 Walkthrough

Walkthrough

Updated Jira Cloud OAuth setup instructions in the setup flow to clarify the distinction between Classic and Granular scopes. Modified webhook configuration guidance to recommend selecting only Comment and Issue events, removing references to Attachment events.

Changes

Cohort / File(s)	Summary
Jira Cloud Setup Instructions server/setup_flow.go	Clarified OAuth scopes documentation to distinguish between Classic and Granular scopes in the Atlassian Developer Console. Revised webhook configuration to recommend Comment and Issue events only, removing Attachment event references.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'Update setup flow guidelines' accurately reflects the main change—updating setup instructions in setup_flow.go for Jira OAuth and webhook configuration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch MM-67658-remove-attachment-reference

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_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[avasconcelos114]

LGTM!