feat: implement idx-cli MVP foundation, provider abstraction, and core quote/history commands

src/cli/config.rs

@@ -0,0 +1,15 @@
+use clap::{Args, Subcommand};
+
+#[derive(Debug, Args)]
+pub struct ConfigCmd {
+    #[command(subcommand)]
+    pub command: ConfigSubcommand,
+}
+
+#[derive(Debug, Subcommand)]
+pub enum ConfigSubcommand {
+    Init,
+    Get { key: String },
+    Set { key: String, value: String },
+    Path,
+}