Feature: Penetration chance in the armor shot card

Shows the chance a shot penetrates in the dynamic armor shot card, right-aligned on the shot's result line.

- Penetration varies by ±5% (the same randomisation the armor highlighter shader uses), so the chance is the share of that range where the shot's final outcome is a penetration
- Re-runs the existing shot calculation at different penetration values, so spaced armor, HEAT gap losses and ricochets are taken into account
- For ricochets the chance is shown on the ricocheted shot's line; HE splashes don't count as penetrations
- Adds the `shot_card.stats.penetration_chance` string

Fixes #342

packages/website/src/stores/tankopedia.ts

@@ -43,6 +43,7 @@ export type Shot = {
   containsGaps: boolean;
   damage: number;
   splashRadius?: number;
+  penetrationChance?: number;
 
   in: {
     surfaceNormal: Vector3;