feat(cli): warn on legacy init templates

[ricardo-devis-agullo]

Summary

Implements the remaining template deprecation warning from #1529 and the V1 0.x roadmap.

• Bare jade and handlebars selections in oc init now emit the shared one-time DeprecationWarning.
• The warning points users to the modern ESM component runtime via oc-template-es6.
• Legacy aliases still resolve to oc-template-jade / oc-template-handlebars and use the existing compiler scaffolds.
• Explicit oc-template-jade and oc-template-handlebars selections remain silent and unchanged.
• Removes the obsolete ad hoc logger message now that the central deprecation utility is used.

Test plan

• npx mocha --timeout 20000 test/unit/cli-domain-local.js from packages/oc (8 passing)
• npm run build -w oc (passes)
• npm run build (11 successful)
• npm test -w oc (995 passing)
• npm run lint (11 successful)
• npm test (22 successful, 995 oc tests passing)

Refs #1529