Bug: agentctl launch truncates pending session IDs to non-unique 'pending-' #71

What happened

Running agentctl launch can print:

Launched session pending- (PID: 69460)

The session ID is truncated to pending-, which is not unique and looks like a regression.

Expected

Launch output should show a unique, actionable session identifier (full ID or unambiguous short form).

Repro

agentctl launch claude-code -p "test pending id repro" --cwd /Users/ms/personal/agentctl

Observed output included Launched session pending- (PID: ...).

Suspected cause

src/cli.ts launch path uses session.id.slice(0, 8). For pending-<pid>, first 8 chars are always pending-.

Environment

• agentctl 1.5.0
• macOS Darwin 25.2.0 arm64
• daemon mode enabled