Build a new program straight from a client

The client Program tab now has a Build new program button (and a New button when one's already assigned):

• One tap to build. It opens the full program builder already pointed at that client — no hopping to the Programs area and back.
• Assigned on finish. Add your days and exercises, then hit Assign to [client] — the program is saved to your library and assigned to them in one step.
• Same safety net. If they're already on a program, you'll get the replace confirmation first; their logged workouts are always kept.

That's all three ways to give a client a program: build new here, assign a template here, or assign from the Library.