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>

packages/db/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@paperclip/db",
+  "name": "@paperclipai/db",
   "version": "0.0.1",
   "private": true,
   "type": "module",
@@ -14,7 +14,7 @@
     "seed": "tsx src/seed.ts"
   },
   "dependencies": {
-    "@paperclip/shared": "workspace:*",
+    "@paperclipai/shared": "workspace:*",
     "drizzle-orm": "^0.38.4",
     "postgres": "^3.4.5"
   },