feat: portray koan character as floating guru

[xnoto]

Summary

Replaces the decorative JRPG IT employee beside the koan with an aria-hidden, pixel-crisp 16×32 traditional Guru sprite. The Guru has a restrained halo/robe treatment and gently floats 1px up and down to reinforce the enlightenment theme of the unchanged subheader. Reduced-motion users receive a static ornament.

Fixes # — not applicable; owner-requested visual refinement.

Type of change

• Bug fix
• Feature / enhancement
• Documentation
• Infrastructure (OpenTofu root or module)
• GitOps desired state (manifests, kustomize, charts, SOPS/KSOPS secrets)
• Container image
• CI / reusable workflow
• Refactor / cleanup
• Breaking change

Validation

• Required pull-request checks pass — static-checks
• Generated or centrally distributed files were regenerated by their owning automation, not hand-edited (not applicable: source-only HTML/CSS refinement)

The passing pull-request CI ran static pre-commit checks (including Prettier and gitleaks) and node --check makeitwork.cloud/sw.js. There is no visual CI or deployment preview; desktop/mobile rendering and reduced-motion behavior remain post-merge functional-verification checks.

Impact and rollout

Self-contained in makeitworkcloud/www: only makeitwork.cloud/index.html changes. No producers, generated copies, PWA behavior, service worker, metadata, links, assets, or the onion site change. After an owner-approved merge, deploy.yml automatically syncs both site directories to S3 with delete semantics and purges Cloudflare. Rollback is a revert followed by the same automatic deployment.

Safety and secrets

• Contains no plaintext secrets, decrypted SOPS values, state files, kubeconfigs, tokens, or private endpoints
• No local OpenTofu init/plan/apply/destroy/import/state operations were run or claimed — plans come from pull-request checks
• Breaking or irreversible effects are described above with rollback notes

This change was materially produced by an AI agent under owner direction.