feat: gc should configure beads to suppress this error message: "Creating issue without description."

[csells]

Before you continue

• I searched existing issues and did not find a duplicate.
• I can explain the user problem this solves, not just the implementation I prefer.

Problem to solve

Creating a bead with a freshly installed gc yields this:

⚠ Creating issue without description.
  Issues without descriptions lack context for future work.
  Consider adding --description="Why this issue exists and what needs to be done"

Agents can certainly execute beads w/o this, so the error seems unnecessary.

Proposed change

I'd like gc to configure beads to suppress this error message.

Alternatives considered

No response

Scope and impact

No response