feat(cli): alexandria beta

[developersdigest]

Summary by cubic

Adds an opt-in Alexandria beta to the CLI for discovering and executing third-party provider tools through Firecrawl. The feature is hidden unless --enable alexandria is passed, and this version publishes under the alexandria npm tag without binary releases.

New Features

• Adds find-tools command and provider execution via scrape --alexandria <provider/capability>.
• search and scrape can return and display tool contracts with --domain-tools.
• Adds setup alexandria to bundle the opt-in beta skill for agents.

Migration

• setup alexandria installs the bundled skill and requires npm with global scope.
• The beta requires a Firecrawl API key with Alexandria access.

^{Written for commit 7cbc02e. Summary will update on new commits.}