v0.2.2: Double-Sign Protection + cosmos-status Fix

Changes

• cosmos-status now queries CometBFT RPC for live block height, catching_up, seconds_since_block, lifecycle state
• kill command stops all managed processes before daemon shutdown (no more orphaned processes)
• Double-sign pre-flight: refuses to start non-validator nodes if priv_validator_key.json is present
• Double-sign sentinel: runtime detection if another node is signing with your key
• New notification: double_sign_risk (Critical severity)
• Usage examples in cosmos-status error messages

Binaries

Platform	File
Linux x86_64	oxidepm-x86_64-unknown-linux-gnu.tar.gz
macOS Apple Silicon	oxidepm-aarch64-apple-darwin.tar.gz