Add Paradex DEX Integration for Automated Trading

[julienbrs]

Is your feature request related to a problem? Please describe.
Trading on Paradex currently requires manual interaction through their interface. Eliza needs a plugin to enable automated trading capabilities on Paradex, allowing for programmatic order management and market analysis.

Describe the solution you'd like
Add a Paradex plugin to Eliza with the following components:

Actions:

1. Place Order

   • Market/Limit orders
   • Long/Short positions
   • Support for all perpetual markets (BTC-USD-PERP, ETH-USD-PERP, etc.)
   • Size and price specifications
   • Example commands:
     • "Long 0.1 ETH"
     • "Short 0.5 BTC at 96000"
     • "Buy 1000 USDC worth of ETH"
     • "Sell 0.2 ETH at 5000"

2. Cancel Order

   • Cancel specific orders by ID
   • Example commands:
     • "Cancel order 123456789"
     • "Remove order xyz789"

Providers:

1. Authentication

   • JWT token management
   • StarkNet account integration
   • Secure private key handling

2. Market Data

   • BBO (Best Bid/Offer) provider
   • Available markets provider
   • Open orders provider
   • Open positions provider
   • Account balance provider

Describe alternatives you've considered

• Direct integration with Paradex API without Eliza
• Using existing trading bots
• Manual trading through Paradex UI

These alternatives lack the natural language processing capabilities and extensibility that Eliza provides.

Additional context

• Integration will be built on top of Paradex's v1 API
• Will require secure environment variable management for private keys and API credentials
• Plugin will follow Eliza's provider/action architecture pattern
• All trading functions will include proper error handling and logging

[julienbrs]

We did implement on Leftcurve a plugin for eliza, will do a PR in the next hours for that issue.