towns-protocol v2.0.0 changelog

• Major documentation overhaul: new unified SKILL.md focused on SDK usage for bot development on Towns Protocol.
• Added critical rules section to clarify address formats, wallet separation, permission handling, and transaction best practices.
• Expanded quick reference with handler method signatures, bot properties, and code import examples.
• Included detailed setup, environment, and config validation guides for Bun and Base network.
• Documented all main event handlers (onMessage, onSlashCommand, onReaction, onTip, onInteractionResponse) with practical code samples.
• Listed common developer mistakes with troubleshooting fixes.
• Resources and documentation links updated for developer ease-of-use.