v0.5.0

• README: the AI coding agents section reports the Claude Code benchmark (Partisan 0.4.0, Claude Fable 5.1, five runs per task): a Filament resource in 10 turns / $0.30 with agent mode against 18 / $0.85 by hand, with a link to the write-up on packstub.dev.
• --fields on make:model, make:migration and make:factory (#19): name:type[(args)][:modifier][=default] with Blueprint column types writes $fillable and casts() on the model, the column lines in the migration and a definition() in the factory, so the three files agree without an edit. Foreign keys (user_id:foreignId, author_id:foreignIdFor(User)) and morphs (commentable:morphs) add the constrained column, a belongsTo / morphTo method and a related factory; User with no package class resolves through config('auth.providers.users.model'), unresolved package classes are reported (unresolved[n] in agent mode). The AGENTS.md recipe for make:model carries the spec.