feat: support more cloud providers and distributions in footer

[vantoan1511]

Summary

Expands the cloud provider and distribution detection in the application footer to support popular cloud offerings (DigitalOcean, Scaleway, Linode, Vultr, Civo, Oracle) and local distributions (Docker Desktop, Kind, K3d, k0s, Talos, Rancher Desktop, Colima, OpenShift). Refactors the logic into an extensible, table-driven utility (detectCloudProvider) to avoid large if-else chains.

Changes

• Cloud Provider Detection Utility: Created src/utils/cloudProvider.ts with table-driven pattern matching rules for cloud providers and local Kubernetes distributions.
• Footer Refactoring: Updated src/components/layout/AppFooter.vue to use detectCloudProvider instead of nested if-else statements.
• Coding Guidelines: Updated GEMINI.md to reinforce designing for extensibility upfront.

Files Changed

File	Action	Description
src/utils/cloudProvider.ts	Added	Table-driven rule matching logic for cluster providers
src/components/layout/AppFooter.vue	Modified	Delegates cloud provider detection to detectCloudProvider
GEMINI.md	Modified	Added rule for designing for extensibility

Testing

• npm run type-check: Passed with 0 errors.
• npm run lint: Passed with 0 warnings/errors.
• npm run build-only: Build completed cleanly.

Related Artifacts

• Report: .agents/PRPs/reports/support-more-providers-report.md
• Plan: .agents/PRPs/plans/completed/support-more-providers.plan.md