[Seed Data] Generate Projects per Car

[Steph375]

Description

• Generate realistic projects for each car.
• Each generated project should have a generated timeline that later seed generators can use.

Acceptance Criteria

• 30 projects are generated per car.
• Projects belong to valid cars.
• Project names are realistic and non-repetitive.
• Each project has a generated duration between 3–12 months.
• Generated project timelines stay within the associated car year.
• Each generated project has an associated seed timeline stored in context.
• Generated projects are stored in ctx.projects.

Proposed Solution

• Add prisma/seed/factories/projectFactory.ts
• Create createSeedProject(ctx, car, overrides?)
• Create generateSeedProjects(ctx)
• Use helper date utilities to generate realistic project timelines.
• Store project timeline metadata in seed context so later work package and task generators can reuse it.