feat: projeto buddie-chat - interface nativa linux para MCPs

- aplicação GTK4/Python para servidores MCP
- interface moderna com Libadwaita
- suporte OpenAI e OpenRouter
- configuração múltiplos MCPs
- chat em tempo real

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

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

style.css

@@ -0,0 +1,40 @@
+/* Buddie Chat - Estilos GTK4 */
+
+.sidebar {
+    background: @window_bg_color;
+    border-right: 1px solid @borders;
+    padding: 12px;
+}
+
+.user-message {
+    background: @accent_bg_color;
+    color: @accent_fg_color;
+    border-radius: 18px;
+    max-width: 70%;
+}
+
+.assistant-message {
+    background: @headerbar_bg_color;
+    color: @window_fg_color;
+    border-radius: 18px;
+    max-width: 70%;
+    border: 1px solid @borders;
+}
+
+.title-1 {
+    font-weight: bold;
+    font-size: 1.5em;
+}
+
+.dim-label {
+    opacity: 0.65;
+}
+
+.success {
+    color: @success_color;
+}
+
+headerbar {
+    background: @headerbar_bg_color;
+    color: @headerbar_fg_color;
+}