IAV-252/feat: Add Config Standard Instructions and Agent Instructions management

Description

This MR implements a comprehensive instructions management system for both configuration-level and agent-level instructions.

Changes

Config Standard Instructions

• Add endpoint to retrieve all hardcoded standard instructions from microservice configurations
• Enable display and management of system-wide standard instructions

Agent Standard Instructions (Main Agent Instructions)

• Create list of agent standard instructions from configurations
• Retrieve all instructions for a specific agent
• Retrieve individual instruction by UID
• Enable/disable instructions functionality

Technical Details

• New endpoints added for instructions management
• UID-based instruction retrieval system
• Toggle functionality (enable/disable) for all instruction types

Testing

• Config standard instructions retrieval tested
• Agent standard instructions CRUD operations tested
• Enable/disable functionality tested
• UID-based retrieval tested

Closes IAV-252