feat: integrate Sensei Spook mascot in 4 stances, speech bubbles, and style updates

.env.example

@@ -0,0 +1,14 @@
+# Google Gemini API Key (Primary Provider)
+GEMINI_API_KEY=your_gemini_api_key_here
+
+# OpenRouter API Key (Backup Provider)
+OPENROUTER_API_KEY=your_openrouter_api_key_here
+
+# Selected model to use for generation: 'nanobanana 2', 'lite', or 'pro'
+GENERATION_MODEL=nanobanana 2
+
+# Optional: Port override
+PORT=3000
+
+# Admin Panel Password
+ADMIN_PASSWORD=admin123