Hide internal Wire commands from CLI help

[kamilio]

Problem

wire --help exposes commands that should not be public:

create <url>                    Fetch a source URL, write a smartly named Markdown file in the current
                                directory, and register it.

show <value>                    Show one registered resource selected by URL, resource ID, or Markdown
                                path.

switch-db                       Switch the workspace registry backend between sqlite and files.

Expected behavior

• create <url> should not exist as a named command in help or as a public command.
• show <value> should not exist as a public command.
• switch-db is internal and should not appear in help.
• If bare wire <url> is intentionally supported, that default command can remain without advertising create as a named command.

Acceptance criteria

• wire --help does not list create, show, or switch-db.
• wire create ... and wire show ... are not available as public commands.
• switch-db remains hidden from normal user-facing help.
• CLI/MCP command-surface tests are updated to cover the public command list.

[kamilio]

Fixed and released on main. toolcraft now supports hidden commands, filters hidden commands from CLI help, and keeps hidden/default command routing behavior covered by tests. Stable release completed successfully from 4e4d06a; toolcraft 0.0.53 is published for wire to consume.