fix(skills): ship runnable brave/openai scripts

skills/brave-search/SKILL.md

@@ -26,4 +26,4 @@ node {baseDir}/scripts/content.mjs "https://example.com/article"
 Notes:
 - Needs `BRAVE_API_KEY`.
 - Content extraction is best-effort (good for articles; not for app-like sites).
- - If a site is blocked or too JS-heavy, prefer the `summarize` skill (it can use a Firecrawl fallback).
+- If a site is blocked or too JS-heavy, prefer the `summarize` skill (it can use a Firecrawl fallback).

skills/brave-search/scripts/search.mjs

@@ -1,5 +1,4 @@
 #!/usr/bin/env node
-import { readFileSync } from "node:fs";
 
 function usage() {
   console.error(`Usage: search.mjs "query" [-n 5] [--content]`);