Fix flipper live catch and EOS rubber physics

[freezy]

Fixes #438.

Summary

• fix live-catch EOS timing by latching the real physics clock once per upstroke
• use the captured pre-response impact speed for live-catch eligibility
• add opt-in VPW held-EOS rubber dampening with the original velocity gate and COR curve
• keep live catch and EOS rubber fallback mutually exclusive
• prevent rapid release/re-press at EOS from re-arming the live-catch window
• document the behavior and expose the settings as a dedicated inspector section
• add focused state, collision-order, catch-outcome, and transformed/kinematic collider regression coverage

Validation

• Unity 6000.5 EditMode: 36/36 focused flipper physics tests pass
• full branch diff passes git diff --check

Compatibility

• the feature remains opt-in through the existing UseFlipperLiveCatch setting
• serialized flipper packaging is unchanged
• existing tables retain their current behavior unless VPW catch physics is enabled

[greptile-apps]

Greptile Summary

This PR updates VPW flipper catch physics and related editor/test coverage.

• Latched live-catch EOS timing from the physics clock.
• Ball impact speed used for live-catch eligibility.
• Held-EOS rubber dampening added behind VPW catch physics.
• Live catch and EOS rubber fallback kept mutually exclusive.
• Inspector text, docs, and focused physics tests updated.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
VisualPinball.Unity/VisualPinball.Unity/VPT/Flipper/FlipperCollider.cs	Updates live-catch eligibility, explicit catch outcomes, and held-EOS rubber fallback behavior.
VisualPinball.Unity/VisualPinball.Unity/Game/PhysicsStaticCollision.cs	Passes pre-collision playfield velocity, solenoid state, and transform context into flipper collision handling.
VisualPinball.Unity/VisualPinball.Unity/VPT/Flipper/FlipperDisplacementPhysics.cs	Latches live-catch EOS timing once per upstroke using the physics clock.
VisualPinball.Unity/VisualPinball.Unity/VPT/Flipper/FlipperVelocityPhysics.cs	Clears live-catch EOS timing on solenoid edges and keeps solenoid edge tracking updated.
VisualPinball.Unity/VisualPinball.Unity.Test/Physics/FlipperPhysicsTests.cs	Adds focused tests for EOS timing, live-catch eligibility, and EOS rubber gates.
VisualPinball.Unity/VisualPinball.Unity.Test/Physics/FlipperCollisionIntegrationTests.cs	Adds collision integration tests for slow-ball catch behavior, transform handling, and EOS rubber response.

_{Reviews (2): Last reviewed commit: "flipper: gate live catch on ball speed" | Re-trigger Greptile}

[freezy]

@greptile-ai re-review