feat(invites): role-granting + usage-capped invites; audit hardening (P7)
Invites - migration 029: space_invites.role (member_role enum, default 'member' — legacy invites and the spaces.invite_code path keep granting member). schema.sql + types/database.ts mirrored - lib/invite-logic.ts (pure, tested): canAssignInviteRole — admin may grant any role; board may grant anything except admin; nobody else. Privilege-escalation guard on top of the existing admin/board gate - createInvite/updateInvite take + enforce role via that guard; createInviteSchema/updateInviteSchema validate the enum - joinSpace applies the invite's granted role (validated), default member; uses_count/max_uses/expiry already enforced - invites panel: role picker (filtered to what the creator may grant), one-click "single use", per-invite role badge - space-scoped invite link /join/<space>?code=… via a presentational app/join/[space] landing that hands off to the proven /signup?invite= flow; /join added to middleware PUBLIC_ROUTES Audit hardening (from this pass's review) - /login now honors a validated same-origin ?next= (was hardcoded to /dashboard) so the public_auth form sign-in round-trips; OAuth threads next through the callback (which already honored it) - submitForm requires formId; submitFormSchema drops the now-ambiguous slug path (form slugs are per-space after 028). Both callers already pass formId. Tests updated 337 tests; build verified (Compiled successfully, exit 0). No deploy.
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