fix: truncate skill command descriptions to 100 chars for Discord (#1018)

* fix: truncate skill command descriptions to 100 chars for Discord

Discord slash commands have a 100 character limit for descriptions.
Skill descriptions were not being truncated, causing command registration
to fail with an empty error from the Discord API.

* style: format

* style: format

src/cli/update-cli.ts

@@ -211,9 +211,7 @@ export async function updateCommand(opts: UpdateCommandOptions): Promise<void> {
         ),
       );
       defaultRuntime.log(
-        theme.muted(
-          "Examples: `npm i -g clawdbot@latest` or `pnpm add -g clawdbot@latest`",
-        ),
+        theme.muted("Examples: `npm i -g clawdbot@latest` or `pnpm add -g clawdbot@latest`"),
       );
     }
     defaultRuntime.exit(0);