Add release notes for changes from 2f6320a to 675a10a

[Copilot]

This PR addresses the request to generate concise release notes documenting the changes between commits 2f6320af3851a6d0745a191481f24accf2bec6a8 and 675a10abd00494e5a8d799fb56f097bc8531fd26.

What's Changed

A new RELEASE_NOTES.md file has been created that organizes 18 commits into logical categories with bullet-pointed summaries:

API Improvements

• Reworked API structure and reimplemented HTTP-01 challenge (Rework HTTP Challenge #53)
• Improved error message handling in API responses
• Fixed HTTP method routing issues
• Added debug logging for better troubleshooting
• Matched SignatureAlgorithm for GenerateCertificateByCSR() function

Challenge System

• Completed challenge solving implementation
• Reworked challenge structure for better organization
• Implemented HTTP-01 challenge support

Certificate Generation

• Refactored certificate generators for improved maintainability
• Removed unnecessary field from SimpleRequest entity
• Fixed user entity type assertion issues

UI/Frontend

• Integrated Bootstrap framework for improved styling
• Reworked UI templates and handlers for better maintainability
• Added user messages and feedback notifications (Show flash messages on UI for user concerning all relevant events #24)
• Improved template structure and functionality
• Removed outdated UI screenshots from documentation

Documentation

• Updated and brought all documentation up-to-date
• Added navigation links to documentation pages
• Improved tool descriptions in README
• Fixed various typos throughout documentation
• Cleaned up configuration and security documentation
• Removed deprecated UI documentation

Code Quality

• Improved constant naming conventions throughout codebase
• Enhanced global constant usage for better consistency
• Quality of life updates and code cleanup

Purpose

This release notes document provides a clear, organized summary of all changes made during this development cycle, making it easier for users and contributors to understand what has been improved, fixed, or added to the project.

Original prompt

From 2f6320a to 675a10a generate concise release noted using bullet points

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