feat: add main features

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

frontend/src/adapters/layout.ts

@@ -0,0 +1,56 @@
+/**
+ * Tauri adapter for {@link LayoutGateway} (L4). Together with the sibling
+ * adapters this is the *only* place that calls `invoke()`; components reach it
+ * exclusively through the port.
+ *
+ * Commands and payload keys are camelCase, matching the backend DTO convention.
+ * The `load_layout`/`mutate_layout` commands return the layout tree directly
+ * (the backend `LayoutDto` is `#[serde(transparent)]` over the tree).
+ */
+
+import { invoke } from "@tauri-apps/api/core";
+
+import type { LayoutKind, LayoutList, LayoutOperation, LayoutTree } from "@/domain";
+import type { LayoutGateway } from "@/ports";
+
+export class TauriLayoutGateway implements LayoutGateway {
+  loadLayout(projectId: string, layoutId?: string): Promise<LayoutTree> {
+    return invoke<LayoutTree>("load_layout", { projectId, layoutId });
+  }
+
+  mutateLayout(
+    projectId: string,
+    operation: LayoutOperation,
+    layoutId?: string,
+  ): Promise<LayoutTree> {
+    return invoke<LayoutTree>("mutate_layout", { projectId, layoutId, operation });
+  }
+
+  listLayouts(projectId: string): Promise<LayoutList> {
+    return invoke<LayoutList>("list_layouts", { projectId });
+  }
+
+  createLayout(projectId: string, name: string, kind?: LayoutKind): Promise<{ layoutId: string }> {
+    return invoke<{ layoutId: string }>("create_layout", {
+      request: { projectId, name, kind },
+    });
+  }
+
+  renameLayout(projectId: string, layoutId: string, name: string): Promise<void> {
+    return invoke<void>("rename_layout", {
+      request: { projectId, layoutId, name },
+    });
+  }
+
+  deleteLayout(projectId: string, layoutId: string): Promise<{ activeId: string }> {
+    return invoke<{ activeId: string }>("delete_layout", {
+      request: { projectId, layoutId },
+    });
+  }
+
+  setActiveLayout(projectId: string, layoutId: string): Promise<void> {
+    return invoke<void>("set_active_layout", {
+      request: { projectId, layoutId },
+    });
+  }
+}