feat: add main features

Agents for developpement added + frontend add + backend added. Git viewer created + agent and template creator + layout and project creator

crates/app-tauri/capabilities/default.json

@@ -0,0 +1,7 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "Default capability set for the IdeA main window.",
+  "windows": ["main"],
+  "permissions": ["core:default", "dialog:allow-open"]
+}