fix(torghut): reject stale TA quotes

[gregkonush]

Summary

• add a 2-second equity TA quote freshness gate so stale or future quote state is not attached to new microbar signals
• make Torghut quote quality reject signals that have a price but no executable bid/ask quote
• cover the new freshness and missing executable quote behavior with targeted Kotlin and Python tests

Testing

• ./gradlew :technical-analysis-flink:test
• uv run --frozen pytest tests/test_quote_quality.py tests/test_strategy_runtime.py -k 'quote_quality or mean_reversion_rebound or mean_reversion_exhaustion or intraday_tsmom or breakout_continuation'
• uv run --frozen pyright --project pyrightconfig.json
• uv run --frozen pyright --project pyrightconfig.alpha.json
• uv run --frozen pyright --project pyrightconfig.scripts.json
• bun run lint:argocd
• git diff --check

Rollout / Impact

• GitOps change for torghut equity TA and TA sim config: TA_QUOTE_STALE_AFTER_MS=2000.
• Live-money order submission remains disabled; paper account remains the only enabled submission path.
• This does not loosen spread gates or force orders. It prevents stale/future quotes from being treated as executable quote context.

Risk

• Fresh quote coverage may drop when IEX updates are sparse; that is intentional because trading without a fresh executable bid/ask is unsafe.

[gregkonush]

Merge outcome: merged.

Evidence:

• Head 1fa336d4c1d44a7fc56cb9c5916971a34fba2029 completed fresh CI after the changed-line coverage fix for quote quality side-specific rejection branches.
• GitHub checks passed: torghut-ci / Bytecode + pytest + coverage, torghut-ci / Pyright, torghut-ci / Quality signals (complexity + security), dorvud-ci / test, argo-lint / lint, kubeconform / validate, semantic commit lint, semantic PR title, and changed-file checks.
• Merge commit: 3300ed68d642b2178bcedeef58a66bf9adc82526.
• Post-merge gate moves to GitOps/cluster rollout health; rollback path is revert of the squash merge commit plus the corresponding image promotion if a deployed artifact regresses.