refactor: jsc-mod 改名 jsc-mod-statusline、jsc-companion 改名 jsc-mod-companion,指令拆成獨立指令

- jsc-mod-statusline:/jsc-mod-statusline:enable、compact、disable
- jsc-mod-companion:/jsc-mod-companion:status、switch、disable、setup、todo、quiet
- 同步更新 plugin.json、marketplace.json 與各 README
- 補上 statusline band 測試缺少的 ui.render 底層處理

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

plugins/jsc-mod-companion/hooks/companion/verify.ts

@@ -0,0 +1,16 @@
+// 辨識「驗證類」指令（測試、型別檢查、build），失敗後轉成功才值得角色反應
+const VERIFY: RegExp[] = [
+  /^(?:bun|npm|pnpm|yarn)\s+(?:run\s+)?(?:test|build|typecheck|lint)\b/,
+  /^(?:bun|npm|pnpm|yarn)\s+test\b/,
+  /^(?:pytest|tsc|vitest|jest|mypy|ruff)\b/,
+  /^cargo\s+(?:test|build|check)\b/,
+  /^go\s+(?:test|build|vet)\b/,
+]
+
+// 以 && ; | 拆開複合指令，任何一段是驗證指令就算
+export function isVerifyCommand(command: string): boolean {
+  return command
+    .split(/&&|\|\||;|\|/)
+    .map(s => s.trim())
+    .some(s => VERIFY.some(re => re.test(s)))
+}