feat(unity): enhance visual effects and animations

- Add cloud system with procedural sprites and parallax movement
- Add tree swaying animation for palm trees
- Improve agent breathing with squash & stretch animation
- Add jump animation routine for agent reactions
- Add custom CartoonWater shader support
- Add SetupVisuals editor tool and GlobalProfile asset
- Lower speech bubble alpha for glass effect

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

unity-client/Assets/Shaders/CartoonWater.shader

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+Shader "TheIsland/CartoonWater"
+{
+    Properties
+    {
+        _MainColor ("Water Color", Color) = (0.2, 0.5, 0.9, 0.8)
+        _FoamColor ("Foam Color", Color) = (1, 1, 1, 1)
+        _WaveSpeed ("Wave Speed", Range(0, 5)) = 1.0
+        _WaveHeight ("Wave Height", Range(0, 1)) = 0.1
+        _FoamAmount ("Foam Amount", Range(0, 1)) = 0.1
+    }
+    SubShader
+    {
+        Tags { "RenderType"="Transparent" "Queue"="Transparent" }
+        LOD 100
+        Blend SrcAlpha OneMinusSrcAlpha
+        ZWrite Off
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+                float3 worldPos : TEXCOORD1;
+            };
+
+            fixed4 _MainColor;
+            fixed4 _FoamColor;
+            float _WaveSpeed;
+            float _WaveHeight;
+            float _FoamAmount;
+
+            v2f vert (appdata v)
+            {
+                v2f o;
+                // Simple vertex displacement wave
+                float wave = sin(_Time.y * _WaveSpeed + v.vertex.x * 2.0) * _WaveHeight;
+                v.vertex.y += wave;
+                
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv = v.uv;
+                o.worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;
+                return o;
+            }
+
+            fixed4 frag (v2f i) : SV_Target
+            {
+                // Moving foam texture simulation using noise
+                float2 uv1 = i.uv + float2(_Time.x * 0.1, _Time.x * 0.05);
+                float noise = frac(sin(dot(uv1, float2(12.9898, 78.233))) * 43758.5453);
+                
+                // 1. Horizon/Wave Foam (Top)
+                float waveFoam = step(1.0 - _FoamAmount - (noise * 0.05), i.uv.y);
+                
+                // 2. Shoreline Foam (Bottom)
+                // Sine wave for "tide" effect
+                float tide = sin(_Time.y * 1.5) * 0.05;
+                float shoreThreshold = 0.05 + tide + (noise * 0.02);
+                float shoreFoam = step(i.uv.y, shoreThreshold);
+
+                // Combine foam
+                float totalFoam = max(waveFoam, shoreFoam);
+                
+                fixed4 col = lerp(_MainColor, _FoamColor, totalFoam);
+                return col;
+            }
+            ENDCG
+        }
+    }
+}

unity-client/Assets/Shaders/CartoonWater.shader.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: f82a9056a602b4fcd9b86f52d2c43c9a
+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  nonModifiableTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: