fix(torghut): align breakout exit trace

[gregkonush]

Summary

• Uses the shared OR-semantics exit-trigger gate for breakout continuation exits.
• Records breakout failure, loss of opening-range structure, and session-strength reversal as the actual independent sell triggers.
• Adds trace coverage proving a confirmed breakout failure produces a passing exit gate.

Related Issues

Addresses historical Codex review: #4815 (comment)

Testing

• Python 3.12 pytest -q tests/strategy_runtime/test_runtime_breakout_b.py — 13 passed.
• Pyright pyrightconfig.json — 0 errors, 0 warnings.
• Pyright pyrightconfig.alpha.json — 0 errors, 0 warnings.
• Pyright pyrightconfig.scripts.json — 0 errors, 0 warnings.
• Ruff format and lint on changed files — passed.
• uv sync --frozen --extra dev remains blocked in agents-shell by the missing standard /lib64 loader; validation used the repository’s existing synced Python 3.12 environment through the pinned Nix loader.

Breaking Changes

None.

Checklist

• Testing section documents exact validation and the local toolchain limitation.
• Screenshots are not applicable; Breaking Changes is filled in.
• No documentation or release-note update is required for this trace-semantics correction.