chore(ci): trigger frontend image rebuild on constructorfabric namespace

[cyberantonz]

Summary

After the cyberfabric → constructorfabric migration merged earlier today, no frontend file has changed, so .github/workflows/docker.yml hasn't published a new image under the new ghcr.io/constructorfabric/insight-front namespace. The old ghcr.io/cyberfabric/insight-front tags are stranded.

docker.yml runs on every push to main with no path filter, so a comment-only README touch is enough to retrigger.

Test plan

• Merge to main and confirm the Build & Push job pushes ghcr.io/constructorfabric/insight-front:<date>-<sha> and :latest.
• Confirm the dispatch-umbrella job fires constructorfabric/insight's build-images.yml with frontend_tag=<new tag> set so the umbrella chart's frontend subchart appVersion bumps to match.

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR adds a CI rebuild marker comment in README.md to document and retrigger the frontend image build in response to the constructorfabric/* namespace flip occurring on 2026-06-09.

Changes

CI Rebuild Marker

Layer / File(s)	Summary
CI rebuild marker comment README.md	A timestamped CI rebuild marker comment (2026-06-09) is inserted to document and trigger the frontend image build on the namespace flip to constructorfabric/*.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• constructorfabric/insight-front#158: Both PRs update README.md in the context of the constructorfabric/* namespace flip (main PR adds a CI rebuild marker, while the retrieved PR retargets docs to constructorfabric), indicating the same migration-driven change set.

Poem

🐰 A marker laid down with care and precision,
To whisper to CI: "Rebuild with vision!"
The namespace has flipped on this June day,
And the frontend shall build the modern way.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically summarizes the main change: triggering a frontend image rebuild for the constructorfabric namespace migration.
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.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ 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 chore/trigger-image-rebuild

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