[Seed Data] - Generate Users with Role Distribution

[Steph375]

Description

Generate realistic users across roles.

Possible factory helpers:

• createSeedGuest(ctx, overrides?)
• createSeedOnboardingUser(ctx, overrides?)
• createSeedMember(ctx, overrides?)
• createSeedLead(ctx, overrides?)
• createSeedHeadOrAdmin(ctx, overrides?)
• generateSeedUsers(ctx)

Users should have valid related role records tied to the seed organization so later generators can use them for assignments, ownership, reimbursements, etc.

Acceptance Criteria

• 300–400 users are generated.
• Every user has at least one valid role.
• Role distribution roughly matches the epic.
• Roles are tied to the seed organization.
• Generated users are stored in ctx.users.
• Role-specific subsets are stored in context (ctx.members, ctx.leads, etc.)
• Later generators can reuse generated users for assignments and ownership.