- Optimizer: add `is IOptimizer` and mark getLiquidityParams() with
`override`, making the interface conformance explicit at the base level.
OptimizerV3 inherits it transitively via Optimizer.
- OptimizerV3Push3: add `is IOptimizer` and implement getLiquidityParams()
that calls calculateParams() with zeroed inputs, returning bear-mode
defaults (ci=0, anchorShare=0.3e18, anchorWidth=100, discoveryDepth=0.3e18).
Behaviour is identical to the previous try/catch fallback used by
LiquidityManager and the backtesting deployer.
- Update backtesting comments to reflect that getLiquidityParams() now
exists on OptimizerV3Push3 (returns bear defaults via zeroed inputs).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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