feat: Add zap command for sending Bitcoin Lightning tips

- Implemented the `zap` command in the CLI to allow users to send sats to a user, event, or snippet using a NIP-60 wallet.
- Created a new `zap.ts` file to handle the command logic and integrated it into the MCP server.
- Added wallet balance command to check the balance of a user's wallet.
- Enhanced the MCP server to register the new zap command and wallet balance command.
- Introduced caching for wallets to optimize performance and reduce redundant network requests.
- Updated database schema to include snippets table for storing code snippets.
- Improved logging functionality for better debugging and tracking of operations.
- Added functionality to save snippets to the database upon retrieval.
- Updated project overview documentation to reflect new features and structure.
- Refactored existing commands and logic for better modularity and maintainability.

commands/index.ts

@@ -4,6 +4,7 @@ import { registerWotCommand } from './wot.js';
 import { registerListUsernamesCommand } from './list-usernames.js';
 import { registerMcpCommand } from './mcp.js';
 import { registerSetupCommand } from './setup.js';
+import { registerZapCommand } from './zap.js';
 
 // Create a new Commander program
 const program = new Command();
@@ -20,6 +21,7 @@ registerFindSnippetsCommand(program);
 registerWotCommand(program);
 registerListUsernamesCommand(program);
 registerSetupCommand(program);
+registerZapCommand(program);
 
 // Function to run the CLI
 export async function runCli(args: string[]) {