Add PokeAPI MCP Server

[joereg4]

Pull Request Description

## MCP Server Information

**Server Name:** PokeAPI MCP Server
**Repository URL:** https://github.com/joereg4/pokeapi-mcp-server
**Brief Description:** Comprehensive Pokémon data MCP server providing access to 1000+ Pokémon, moves, abilities, items, and evolution chains through 9 specialized tools. Built on the official PokeAPI for gaming, educational, and data analysis applications.

## Basic Requirements

- [x] **Open Source**: Uses acceptable license (MIT License)
- [x] **MCP Compliant**: Implements MCP API specification with 9 tools
- [x] **Active Development**: Recent commits and actively maintained
- [x] **Docker Artifact**: Dockerfile included and image published to Docker Hub
- [x] **Documentation**: Comprehensive README with setup instructions and usage examples
- [x] **Security Contact**: GitHub issues for security reporting

## Submitter Checklist

- [x] This server meets the basic requirements listed above
- [x] I understand this will undergo automated and manual review
- [x] I have tested the MCP Server using `task validate -- --name pokeapi`
- [x] I have built the MCP Server using `task build -- --tools pokeapi`

## Additional Information

### Available Tools
1. get_pokemon - Detailed Pokémon stats, types, abilities, and sprites
2. get_pokemon_species - Species data including flavor text and evolution info
3. get_evolution_chain - Complete evolution chain information by chain ID
4. get_type - Type effectiveness and damage relations
5. get_machine - TM/HM/TR information including moves and availability
6. get_pokedex - Pokédex entries and descriptions
7. get_move - Move information including power, accuracy, and effects
8. get_ability - Ability information including effects and Pokémon that have it
9. get_item - Item information including effects and usage

### Technical Details
- Language: Python with FastAPI
- Data Source: Official PokeAPI (https://pokeapi.co/)
- Docker Image: joereg4/pokeapi-mcp-server:latest
- Configuration: No setup required
- Category: Entertainment

### Files Added
- servers/pokeapi/server.yaml - Main server configuration
- servers/pokeapi/tools.json - Tool definitions

All validation and build tests pass successfully.