docs: add V12 service workspace examples

[LioRael]

Summary

• add example service workspace file
• document workspace check, install-by-name, and export flows
• align support-ticket service docs with V12 diagnostics

Checks

• pnpm exec prettier --check README.md lenso.workspace.json docs/support-ticket-service-module-run.md examples/support-ticket/README.md
• git diff --check

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Latest commit: dcf4ce1

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