v1.30.5

Central [defaults] policy block

~/.parley/agents.toml (and a deck's parley-deck/agents.toml) now carry a [defaults] block, merged low→high like the agent catalog:

• speed → global default speed for every agent spec (per-agent override still wins).
• ping_tier → none/off skips the §9.0 hosted-PONG round-trip in parley preflight/run (explicit --no-ping still forces skip).
• preferred_transport → parley init seeds the fresh deck's transport (local-dir/github-pr/gitlab-mr).
• roster_change_policy, timeouts → exposed via config.LoadDefaults, honored by the facilitator/skill.

New config.LoadDefaults, protocol.InitWorkspaceWithTransport; the seeded ~/.parley/agents.toml template includes a commented [defaults] block. macOS/Linux: brew upgrade parley-deck-cli.