chore: release v0.8.0

[github-actions]

0.8.0 (2026-03-16)

Features

• cli: --role alias for --fixed-role, git SHA in version, consolidate reconnect logs (dd04dd8)
• peers: auto-ping on connect, fix display state, relay role, TUN cleanup, --json output (5b68528)

Bug Fixes

• cli: remove --fixed-role alias, rename FixedRole* error variants (fix(cli): remove --fixed-role alias #70) (ac97d4a)
• peers: serde_json for --json output, drop side field, remote_addr display label (69bf610)
• relay: retain control_tx across relay session lifetime, register bridged peers (d328144)

Other Changes

• range: attacker layer with curl, nmap, nmap-scripts (39abc7c)
• range: add platinum hard-mode target behind proxy-vault network (75a9e81)
• ci: add concurrency group to release workflow to prevent TOCTOU race (54c4427)

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Merging this PR will create tag wallhack-cli-v0.8.0 and trigger the binary build pipeline.