fix: implement FromStr for NumberOrString and KeyValue to fix clap parsing errors

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/args.rs

@@ -1,7 +1,8 @@
 use std::path::PathBuf;
+use std::str::FromStr;
 
 use clap::*;
-use serde::{Deserialize, Serialize};
+use anyhow::{Error, anyhow};
 
 /**
  * Main struct for command-line arguments.
@@ -17,6 +18,7 @@ pub struct Args {
     pub options: OptionsArgs,
 
     #[arg(help("A list of either item IDs or tags"))]
+    #[arg(value_parser = clap::value_parser!(NumberOrString))]
     pub ids_or_tags: Vec<NumberOrString>,
 }
 
@@ -75,6 +77,7 @@ pub struct ItemArgs {
     #[arg(help(
         "Set metadata for the item using the format KEY=[VALUE], the metadata will be removed if VALUE is not provided"
     ))]
+    #[arg(value_parser = clap::value_parser!(KeyValue))]
     pub meta: Vec<KeyValue>,
 
     #[arg(help_heading("Item Options"), long, env("KEEP_DIGEST"))]
@@ -141,6 +144,15 @@ pub enum NumberOrString {
     Str(String),
 }
 
+impl FromStr for NumberOrString {
+    type Err = Error;
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Ok(s.parse::<i64>()
+            .map(NumberOrString::Number)
+            .unwrap_or_else(|_| NumberOrString::Str(s.to_string())))
+    }
+}
+
 /**
  * Struct for key-value pairs.
  */
@@ -149,3 +161,16 @@ pub struct KeyValue {
     pub key: String,
     pub value: String,
 }
+
+impl FromStr for KeyValue {
+    type Err = Error;
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s.split_once('=') {
+            Some(kv) => Ok(KeyValue {
+                key: kv.0.to_string(),
+                value: kv.1.to_string(),
+            }),
+            None => Err(anyhow!("Unable to parse key=value pair")),
+        }
+    }
+}