chore(main): release 1.18.0

[github-actions]

🤖 I have created a release beep boop

1.18.0 (2026-07-08)

Features

• arena: 3d spatial gate core — isometric cube grid, mint + set-verify (e19adda)
• arena: analog-clock captcha gate — render + read-the-clock verify, grounded (95c1082)
• arena: audio gate core — embedded fsdd corpus + pure-go wav codec + mint/verify (841d8e0)
• arena: wire the audio gate — /arena/audio mint+verify, catalog, speed floor (664c049)
• arena: wire the spatial gate — /arena/spatial mint+verify, catalog, speed floor (0339cc9)
• detector: audio gate coherence join — relay + arena_audio_superhuman rule, grounded (a65e753)
• detector: audio gate page widget — the audio gate is fully landed (a90171f)
• detector: spatial gate landed — relay + page widget + solver + coherence join (8fdc720)
• evaders: arena-defeat generalize — whole arena defeated in one coherent session (ad87ea0)
• evaders: arena-defeat r2 — a real browser clears no_js_execution + passes the gate paced (07ab7fb)
• evaders: arena-defeat r3 — coherent camoufox + paced solve defeats the clock gate (c2d085b)
• evaders: arena-defeat r3 — coherent camoufox defeats the audio gate; all three defeated (a1dd4ac)
• evaders: arena-defeat r3 — coherent camoufox defeats the spatial gate too (d809d4a)
• evaders: arena-defeat r4 — ncc audio solve (13->100% easy) + reusable defeat profile (a3791e1)
• evaders: audio gate reference solver — matched-filter, grounds the positive path (b0096c0)

Bug Fixes

• arena: add the missing FSDD CC-BY-SA attribution for the audio corpus (238b7ed)
• detector: allow clock through the arena captcha relay whitelist (12bb98c)
• evaders: bump os-spoof x/crypto to v0.53.0 (ghsa ssh panic + unbounded) (037e8da)

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[github-actions]

🤖 Created releases:

• v1.18.0

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