refactor: rename packages to @paperclipai and CLI binary to paperclipai

Rename all workspace packages from @paperclip/* to @paperclipai/* and
the CLI binary from `paperclip` to `paperclipai` in preparation for
npm publishing. Bump CLI version to 0.1.0 and add package metadata
(description, keywords, license, repository, files). Update all
imports, documentation, user-facing messages, and tests accordingly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/src/pages/Activity.tsx

@@ -19,7 +19,7 @@ import {
   SelectValue,
 } from "@/components/ui/select";
 import { History } from "lucide-react";
-import type { Agent } from "@paperclip/shared";
+import type { Agent } from "@paperclipai/shared";
 
 export function Activity() {
   const { selectedCompanyId } = useCompany();