v0.0.20

Full Changelog: v0.0.7...v0.0.20

• feat: enhance database and agent context management
• feat: add FourMemeProvider to swap plugin and update example usage
• feat: disable provider selection in SwapTool and prepare for future i…
• feat: add OKX provider and update swap example with BINK token
• feat: add knowledge plugin with Bink provider integration
• feat(bridge): implement deBridge cross-chain bridge integration