Add comprehensive installation guide

- Installation methods for different use cases
- Configuration for Claude Desktop and Cursor
- Entry point usage (jira-mcp command and python -m jira_mcp)
- Troubleshooting guide and best practices

INSTALLATION.md

+# Jira MCP Package Installation & Usage Guide
+
+## Project Conversion Summary
+
+The Jira MCP Server has been successfully converted into an installable Python package! 🎉
+
+### What Changed
+
+**Before:** Users had to manually clone, set up virtual environments, and run `python jira_mcp_server.py`
+**Now:** Users can install in one command and run the server immediately
+
+---
+
+## Installation Methods
+
+### ✅ Method 1: Direct from Git (Recommended)
+
+```bash
+pip install git+https://repo.dohatec.com.bd/ai-solutions/mcp-server-jira.git
+```
+
+This will:
+- Install the `jira-mcp` package with all dependencies automatically
+- Create a `jira-mcp` command-line entry point
+- Enable `python -m jira_mcp` execution
+
+### ✅ Method 2: Editable Installation (Development)
+
+```bash
+git clone https://repo.dohatec.com.bd/ai-solutions/mcp-server-jira.git
+cd mcp-server-jira
+pip install -e .
+```
+
+This is useful if you want to contribute to the project.
+
+### ✅ Method 3: Build and Install Locally
+
+```bash
+git clone https://repo.dohatec.com.bd/ai-solutions/mcp-server-jira.git
+cd mcp-server-jira
+python3 -m pip install build
+python3 -m build
+pip install dist/jira_mcp-1.0.0-py3-none-any.whl
+```
+
+---
+
+## Running the Server
+
+After installation, you have **two ways** to run the server:
+
+### Option A: Using the CLI Entry Point
+```bash
+jira-mcp
+```
+
+### Option B: Using Python Module Runner
+```bash
+python -m jira_mcp
+```
+
+Both do exactly the same thing. Choose whichever is more convenient for your setup.
+
+---
+
+## Configuration
+
+### Set Environment Variables
+
+```bash
+export JIRA_SERVER="http://103.41.111.60:8085"
+export JIRA_USERNAME="shahidul"
+export JIRA_PASSWORD="your-api-token"
+export JIRA_DEFAULT_PROJECT="PCM"          # Optional
+export JIRA_QA_TESTER="Samia Islam"         # Optional
+```
+
+Then start the server:
+```bash
+jira-mcp
+# or
+python -m jira_mcp
+```
+
+### For Claude Desktop
+
+Edit `~/.config/Claude/claude_desktop_config.json` (Mac):
+
+```json
+{
+  "mcpServers": {
+    "jira-mcp": {
+      "command": "jira-mcp",
+      "env": {
+        "JIRA_SERVER": "http://103.41.111.60:8085",
+        "JIRA_USERNAME": "shahidul",
+        "JIRA_PASSWORD": "your-password",
+        "JIRA_DEFAULT_PROJECT": "PCM",
+        "JIRA_QA_TESTER": "Samia Islam"
+      }
+    }
+  }
+}
+```
+
+### For Cursor
+
+1. Open Cursor Settings → Features → **MCP Servers**
+2. Add New MCP Server
+3. **Command:** `jira-mcp`
+4. Ensure environment variables are set in your shell before launching Cursor
+
+---
+
+## Package Structure
+
+```
+jira_mcp/
+├── __init__.py          # Package metadata & version
+├── server.py            # Main MCP server code (moved from jira_mcp_server.py)
+└── __main__.py          # Module entry point for python -m execution
+
+pyproject.toml           # Modern Python packaging configuration
+MANIFEST.in              # Distribution file includes
+.gitignore               # Updated with build artifacts
+README.md                # Updated with new install instructions
+```
+
+---
+
+## Entry Points
+
+The package defines two entry points in `pyproject.toml`:
+
+1. **CLI Command:** `jira-mcp` → runs `jira_mcp.server:main()`
+2. **Module Runner:** `python -m jira_mcp` → runs `jira_mcp.__main__:main()`
+
+Both entry points call the same `main()` function, which starts the MCP server with `mcp.run()`.
+
+---
+
+## Key Changes Made
+
+| File | Change |
+|------|--------|
+| `jira_mcp/server.py` | Moved from `jira_mcp_server.py` + wrapped `mcp.run()` in `main()` function |
+| `jira_mcp/__init__.py` | Created with version `1.0.0` |
+| `jira_mcp/__main__.py` | Created to enable `python -m jira_mcp` |
+| `pyproject.toml` | Created with modern build system config + entry points |
+| `MANIFEST.in` | Created to include README/CHANGELOG in distribution |
+| `.gitignore` | Updated to exclude build artifacts |
+| `README.md` | Updated with new installation & configuration instructions |
+
+---
+
+## Verification Checklist
+
+✅ Package installs from Git URL with `pip install git+https://...`
+✅ CLI entry point `jira-mcp` is created and executable
+✅ Module runner `python -m jira_mcp` works
+✅ Dependencies (mcp, jira) are auto-installed
+✅ Environment variables still work as before
+✅ No breaking changes to existing code
+✅ Tests remain independent (not included in distribution)
+
+---
+
+## Next Steps (Optional)
+
+### For users:
+```bash
+# Simple installation
+pip install git+https://repo.dohatec.com.bd/ai-solutions/mcp-server-jira.git
+
+# Start the server
+jira-mcp
+```
+
+### For developers:
+1. Clone the repo
+2. Run `pip install -e .` for development installation
+3. Modify code while changes auto-apply
+4. Run tests with `python test_mcp.py`
+
+### Future considerations:
+- Optional: Publish to PyPI for `pip install jira-mcp` (no git URL needed)
+- Optional: Add setup for automatic MCP server registration in Claude/Cursor
+
+---
+
+## Troubleshooting
+
+### `jira-mcp` command not found after installation
+```bash
+# Check where it was installed
+python3 -m pip show -f jira-mcp | grep bin
+# Add that directory to your PATH or use full path
+/Library/Frameworks/Python.framework/Versions/3.14/bin/jira-mcp
+```
+
+### Module import errors
+```bash
+# Ensure package is installed
+python3 -m pip list | grep jira
+# Or reinstall
+pip install --force-reinstall -e .
+```
+
+### Jira connection failures
+```bash
+# Check environment variables are set
+printenv | grep JIRA_
+# Export them if missing
+export JIRA_SERVER="http://..."
+export JIRA_USERNAME="..."
+```
+
+---
+
+## Questions?
+
+Refer to the updated [README.md](../README.md) for detailed usage examples and all available MCP tools.