Simple Jira MCP

# Changelog All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [Unreleased] ## [1.0.0] - 2025-12-08 ### Added - Initial release - `list_configs` tool for listing available Jira configurations - `search_issues` tool for JQL-based issue search - `get_issue` tool for retrieving issue details with comments and attachments - `create_issue` tool for creating new issues - `download_attachment` tool for downloading attachments - Multi-configuration support via `JIRA_CONFIG_JSON` environment variable - Input validation for issue keys, project keys, and JQL queries - ADF (Atlassian Document Format) conversion utilities - Structured error responses with error codes