Refactor plant growth system to enhance data-driven mechanics

Update the PlantGrowth component and PlantGrowthSystem to improve plant growth stages based on the calendar. Introduce a new PlantDef structure with a Stages list for texture, size, and growth duration, allowing for more dynamic plant behavior. Adjust WorldScene to utilize the updated growth logic, ensuring varied initial maturity and seamless integration with the calendar system.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/run.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+CONFIGURATION="${CONFIGURATION:-Release}"
+
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        -c | --configuration)
+            CONFIGURATION="$2"
+            shift 2
+            ;;
+        *)
+            break
+            ;;
+    esac
+done
+
+cd "$ROOT"
+
+dotnet build LittleSim.sln -c "$CONFIGURATION"
+dotnet run --project src/LittleSim/LittleSim.csproj -c "$CONFIGURATION" --no-build "$@"