docs: Update CNCF article Preview Image

[savisaluwadana]

Purpose

This updates the Preview Image of the article added recently

Related Issues

Checklist

• Updated sidebars.ts if adding a new documentation page
• Run npm run start to preview the changes locally
• Run npm run build to ensure the build passes without errors
• Verified all links are working (no broken links)

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Review details

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

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Run ID: 1bcb5de4-a770-4750-872a-dd9e6a384d4d

📥 Commits

Reviewing files that changed from the base of the PR and between 0663600 and 6eeb268.

📒 Files selected for processing (1)

• src/utils/communityEvents.ts

📝 Walkthrough

Walkthrough

endTimestamp now computes community event end-of-day timestamps in the visitor’s local timezone, affecting past-versus-upcoming classification around midnight.

Changes

Community event timezone handling

Layer / File(s)	Summary
Local end-of-day cutoff src/utils/communityEvents.ts	endTimestamp parses ${iso}T23:59:59 without the previous fixed -12:00 offset and documents local-time comparison behavior.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• openchoreo/openchoreo.github.io#757: Introduced the community event timestamp and past-versus-upcoming cutoff logic.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title is specific and matches the PR's visible focus on updating the CNCF article preview image.
Description check	✅ Passed	The description includes the required Purpose, Related Issues, and Checklist sections and is mostly complete.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@src/utils/communityEvents.ts`:
- Around line 56-58: Update the end-of-day timestamp returned by the community
event date parsing logic to use the final millisecond of the day, such as
23:59:59.999, so the event remains active through the entire date. Preserve the
existing viewer-local-time behavior in the Date.parse call.

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Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 21b809b9-eee7-4f4f-a4b4-97da5d090981

📥 Commits

Reviewing files that changed from the base of the PR and between 315ae0e and 0663600.

⛔ Files ignored due to path filters (1)

• blog/assets/previews/cncf-agentic-enterprise-2026.png is excluded by !**/*.png, !**/*.png

📒 Files selected for processing (1)

• src/utils/communityEvents.ts