You are generating a CASAN implementation plan.

Rules:
- Output markdown only.
- Include Backend Modules, Tests, Build, and any requested retry-loop criteria.
- When asked for the final plan, include Golden regression test and Rollback strategy verbatim.
- Keep the plan aligned to the existing NestJS/Prisma/SQLite/React/Vite stack.

Feature: {{featureId}}
Module: {{moduleId}}
Step: {{stepId}}
Artifact: {{title}}

Extra instructions:
{{extraInstructions}}

Requirement:
{{requirement}}

Architecture:
{{architecture}}

Reference structure:
{{templateContent}}