Document legacy agente references and remove obsolete code

[Copilot]

Addresses confusion around commented-out "agente" references in the codebase. These are remnants of a legacy business entity implementation, not AI agents.

Changes

Documentation

• Added README.md with bilingual project overview and FAQ section clarifying that:
  • No AI/ML features exist in this system
  • "Agente" was a legacy business entity replaced by Usuario (User)
  • PayCheck is a traditional .NET 7.0 HR/payroll management system

Code cleanup

• Removed 30 lines of dead code from UsuarioController.cs referencing non-existent GetAgente() method and agenteResponseDto objects in two methods:
  • UpdateUsuario()
  • UpdatePassword()

Before:

return Ok(usuarioResponse);

//return CreatedAtAction(
//    nameof(this.GetAgente),
//    new { id = agenteResponseDto.CodigoAgente },
//    agenteResponseDto);

After:

return Ok(usuarioResponse);

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/graphql
  • Triggering command: /usr/bin/gh gh issue list --limit 5 (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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