Adds the ability for an owner to share a computer build via a public,
unauthenticated link, inspired by a feature request from the original
pcbuilder repo (no such feature actually existed there — implemented
from scratch here).
- New columns on computers: share_token (unique, nullable), share_enabled,
share_show_sell_price, share_show_cost
- computer_share_service.ts: generates a non-guessable share token
(crypto.randomBytes, base64url), enables/disables sharing, and supports
rotating the token to invalidate previously distributed links
- ComputerShareController (authenticated, owner-scoped like the rest of
the app): PUT /computers/:id/share to update settings, POST
/computers/:id/share/rotate to rotate the token
- PublicComputerController + GET /share/:token (outside any auth/guest
group, reachable anonymously): resolves only computers with
share_enabled = true, 404 otherwise
- ComputerPublicTransformer: dedicated read-only projection that never
leaks userId, and only includes sellPrice/cost when the owner opted in
via share_show_sell_price / share_show_cost — everything else (title,
scores, state, components, pictures) is always visible on a shared link
- ComputerShareModal.vue: owner-facing UI (toggle sharing, choose which
prices to expose, copy the public link, revoke/rotate it) wired into
computers/show.vue via a new 'Share' button
- share/show.vue: public page rendered with EmptyLayout (no authenticated
header/sidebar)
- Boolean columns use a cast since MySQL returns tinyint(1),
not native booleans, through Lucid
- 6 new functional tests covering: enabling sharing, price visibility
toggles, disabling sharing revokes the link, cross-user protection on
the share settings endpoint (404), token rotation invalidating the old
link, and anonymous access to a shared computer
