Add {contentType: 'form'} to all edit template @put() calls so form
inputs are submitted by name rather than as Datastar signals. Replace
the quick notes text input on the brew edit page with toggle pill
buttons matching the add form. Add CLI tests for brew and cup update
commands.
- Add `define_cli_auth_test!` macro for authentication-required tests
- Add `define_cli_list_test!` macro for unauthenticated list tests
- Replace 18 auth tests and 5 list tests with macro invocations
- Add `create_entity_cli()` generic, convert per-entity helpers to
thin wrappers
- Move `create_bag` and `create_gear` from brews_cli.rs to helpers.rs
- Test create, list, get, delete operations
- Test bag deduction and conflict on insufficient coffee
- Test CLI commands with defaults
- Add create_default_gear helper
