Feature: CV Template Placeholder Support

[vitorhugo-java]

Overview

Implement backend support for CV templates using the {{PLACEHOLDER}} syntax so the system can generate a personalized CV by replacing placeholders with user-provided values.

This feature is required for the template-based CV generation flow.

Requirements

• Support detecting placeholders using the pattern {{PLACEHOLDER}}
• Persist or expose template-related metadata needed by the frontend
• Support CV generation using a template document with placeholders
• Replace placeholders with the provided values before returning the final CV
• Keep the existing base CV generation flow unchanged
• Make sure the template flow is compatible with the current Google Drive integration

Functional Rules

• Base CV flow must keep the current behavior
• Template CV flow must replace placeholders only when the template mode is selected
• Placeholder detection must be based on the template document content
• The backend must not break existing resume generation

Acceptance Criteria

• Backend can detect placeholders in template content
• Backend can generate a final CV with all placeholders replaced
• Existing base CV generation still works
• API contract is stable and backward compatible