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>

server/src/routes/activity.ts

@@ -1,6 +1,6 @@
 import { Router } from "express";
 import { z } from "zod";
-import type { Db } from "@paperclip/db";
+import type { Db } from "@paperclipai/db";
 import { validate } from "../middleware/validate.js";
 import { activityService } from "../services/activity.js";
 import { assertBoard, assertCompanyAccess } from "./authz.js";