chore(deps): adopt shared Renovate policy

[athal7]

Summary

• Replace Dependabot version updates with Renovate.
• Extend the shared policy from athal7/renovate-config.
• Group dependency updates by package manager.
• Auto-merge stable minor and patch updates after required checks pass.
• Keep pre-1.0 and major updates for review.

Tracks athal7/renovate-config#1

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 4aad7331-465f-486c-b67c-1ae545931b66

📥 Commits

Reviewing files that changed from the base of the PR and between 9b52baf and a295354.

📒 Files selected for processing (2)

• .github/dependabot.yml
• renovate.json

💤 Files with no reviewable changes (1)

• .github/dependabot.yml

Included review availability: Your plan provides up to 2 included reviews per hour; 1 remains after this review.

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Walkthrough

The pull request removes the Dependabot configuration for npm packages and GitHub Actions. It adds renovate.json with Renovate schema metadata and the shared github>athal7/renovate-config preset.

Merge Risk: ⚪ Minimal · up to a2953

This PR only changes dependency-update configuration, with no actionable merge-blocking risk remaining beyond normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly states that the pull request adopts a shared Renovate policy for dependency updates.
Description check	✅ Passed	The description accurately explains the migration from Dependabot to Renovate and the shared update policy.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)
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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