refactor(tools): decompose skill/tools.ts into focused tool creators

src/tools/skill/scope-priority.ts

@@ -0,0 +1,17 @@
+export const SCOPE_PRIORITY: Record<string, number> = {
+  project: 4,
+  user: 3,
+  opencode: 2,
+  "opencode-project": 2,
+  plugin: 1,
+  config: 1,
+  builtin: 1,
+}
+
+export function sortByScopePriority<TItem extends { scope: string }>(items: TItem[]): TItem[] {
+  return [...items].sort((left, right) => {
+    const leftPriority = SCOPE_PRIORITY[left.scope] || 0
+    const rightPriority = SCOPE_PRIORITY[right.scope] || 0
+    return rightPriority - leftPriority
+  })
+}