test(dive): add the breath and drowning flow

[Mathih13]

LyraCore now sends the Vanilla breath timer and drowning damage packets, but wire-harness had no maintained flow that proved the full dive and surface sequence. A timer or damage packet by itself could not establish that the Character stayed submerged through the advertised window, took the reported damage, and stopped draining after surfacing.

Add a server-neutral scenario-dive mode that sends typed swimming movement, validates the Breath timer, waits through its advertised duration, and requires an own Character Drowning log whose damage matches the observed health drop. It then sends surface movement and requires the matching timer stop before logout. The LyraCore adapter checks the imported liquid cell before changing a clearly named disposable Character, reads the password from stdin, and verifies durable damage and surface position after the run.

The Operator run, coordinate selection, head-height calibration, and stock 1.12.1 client acceptance remain pending. Refs LyraCoreProject/LyraCore#142 and LyraCoreProject/LyraCore#12.

Validation:

• cargo fmt --check
• cargo clippy --all-targets --locked -- -D warnings
• cargo test --locked (39 library, 5 scenario, and 31 benchmark tests)
• cargo build --release --locked --bins
• bash tests/lyracore-dive-flow.sh
• bash tests/lyracore-bank-flow.sh
• bash tests/lyracore-suite.sh
• shellcheck --severity=warning adapters/lyracore/test-dive-flow.sh tests/lyracore-dive-flow.sh
• bash -n on all adapter scripts

Made by GPT-5.6 Sol with Codex in T3 Code.