Add regional profile handling to Vertesia CLI

[ebarroca]

What changed

This updates the Vertesia CLI profile flow to treat region as a first-class input and to support generic dev-* targets instead of only the hardcoded dev-main and dev-preview cases.

Why

The previous profile logic was too narrow for the current environment model:

• dev targets were effectively hardcoded to two names
• region handling only really fit preview and prod
• the CLI help and README did not explain the actual target and region behavior clearly

Impact

Users can now:

• create profiles for arbitrary dev-* targets
• pass --region explicitly, including dev1, us1, eu1, and jp1
• rely on target-aware default regions (dev1 for local/dev targets, us1 otherwise)

Validation

• pnpm --prefix composableai/packages/cli exec tsc --noEmit