chore: last refactors finished

src/renderer/navigation/postCreation.ts

@@ -0,0 +1,33 @@
+export interface CreateAndFocusPostOptions {
+  createPost: (input: {
+    title: string;
+    content: string;
+    tags: string[];
+    categories: string[];
+  }) => Promise<{ id: string } | null | undefined>;
+  setSelectedPost: (postId: string) => void;
+  ensurePostsSidebar?: () => void;
+  onError?: (error: unknown) => void;
+}
+
+export async function createAndFocusPost(options: CreateAndFocusPostOptions): Promise<string | null> {
+  try {
+    const post = await options.createPost({
+      title: '',
+      content: '',
+      tags: [],
+      categories: [],
+    });
+
+    if (!post) {
+      return null;
+    }
+
+    options.setSelectedPost(post.id);
+    options.ensurePostsSidebar?.();
+    return post.id;
+  } catch (error) {
+    options.onError?.(error);
+    return null;
+  }
+}