feat: Setup the CLI and create repo view command

Signed-off-by: Awiteb <a@4rs.nl>

src/cli/traits.rs

@@ -0,0 +1,24 @@
+// n34 - A CLI to interact with NIP-34 and other stuff related to codes in nostr
+// Copyright (C) 2025 Awiteb <a@4rs.nl>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://gnu.org/licenses/gpl-3.0.html>.
+
+use super::CliOptions;
+use crate::error::N34Result;
+
+/// A trait defining the interface for command runners in the CLI.
+pub trait CommandRunner {
+    /// Executes the command and returns a Result indicating success or failure.
+    async fn run(&self, options: CliOptions) -> N34Result<()>;
+}