feat: Add OpenCode rule profile with AGENTS.md and MCP config (#970)

* add opencode to profile lists

* add opencode profile / modify mcp config after add

* add changeset

* not necessary; main config being updated

* add issue link

* add/fix tests

* fix url and docsUrl

* update test for new urls

* fix formatting

* update/fix tests

src/profiles/index.js

@@ -5,6 +5,7 @@ export { clineProfile } from './cline.js';
 export { codexProfile } from './codex.js';
 export { cursorProfile } from './cursor.js';
 export { geminiProfile } from './gemini.js';
+export { opencodeProfile } from './opencode.js';
 export { rooProfile } from './roo.js';
 export { traeProfile } from './trae.js';
 export { vscodeProfile } from './vscode.js';