chore(renovate): migrate from dependabot

[swernerx]

Summary

• remove the legacy Dependabot configuration
• add a minimal Renovate config extending the shared Sebastian Software preset

Notes

• dependency update behavior is controlled centrally by sebastian-software/renovate-config
• this PR intentionally does not update dependencies

[greptile-apps]

Greptile Summary

This PR migrates dependency update automation from Dependabot to Renovate by removing .github/dependabot.yml and introducing a minimal renovate.json that delegates all configuration to the shared sebastian-software/renovate-config preset.

• .github/dependabot.yml is deleted — it covered weekly npm and GitHub Actions updates grouped into single PRs with no open-PR limit.
• renovate.json is added at the repo root with the correct JSON schema reference and a single extends entry pointing to the centralised organisation preset.

Confidence Score: 5/5

Safe to merge — the change is purely a tooling configuration swap with no code, dependency versions, or workflow logic affected.

The old Dependabot file is cleanly removed and the new Renovate config is minimal and correctly formed, delegating all scheduling and grouping decisions to the shared organisation preset. There is nothing here that can break a build or affect production behaviour.

No files require special attention.

Important Files Changed

Filename	Overview
.github/dependabot.yml	Deleted — Dependabot configuration for npm and GitHub Actions is removed as part of the migration to Renovate.
renovate.json	Added — minimal Renovate config with the correct schema reference and a single shared-preset extension pointing to the centralised sebastian-software preset.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Dependency update triggered] --> B{Tool}
    B -- Before PR --> C[Dependabot\n.github/dependabot.yml]
    B -- After PR --> D[Renovate\nrenovate.json]
    C --> E[Inline schedule/group config\nnpm + github-actions]
    D --> F[github>sebastian-software/renovate-config\nShared preset]
    F --> G[Centralised org-level rules]

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_{Reviews (1): Last reviewed commit: "chore(renovate): migrate from dependabot" | Re-trigger Greptile}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.52%. Comparing base (98d3d68) to head (cc65e1d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main       #6   +/-   ##
=======================================
  Coverage   86.52%   86.52%           
=======================================
  Files          27       27           
  Lines         549      549           
  Branches      112      116    +4     
=======================================
  Hits          475      475           
  Misses         74       74           

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