fix(cli): show config file content in debug config command

Fixes bounty issue #1418

The debug config command previously only showed config file paths and
whether they exist, but did not display the actual configuration content.
This change adds the config file contents to both JSON and human-readable
output formats when the files exist.

Author: factorydroid

cortex-cli/src/debug_cmd.rs

@@ -76,6 +76,10 @@ struct ConfigDebugOutput {
     resolved: ResolvedConfig,
     locations: ConfigLocations,
     #[serde(skip_serializing_if = "Option::is_none")]
+    global_config_content: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    local_config_content: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     environment: Option<HashMap<String, String>>,
 }
 
@@ -112,10 +116,28 @@ async fn run_config(args: ConfigArgs) -> Result<()> {
         cortex_home: config.cortex_home.clone(),
     };
 
+    let global_config_exists = global_config.exists();
+    let local_config_exists = local_config.as_ref().is_some_and(|p| p.exists());
+
+    // Read config file contents if they exist
+    let global_config_content = if global_config_exists {
+        std::fs::read_to_string(&global_config).ok()
+    } else {
+        None
+    };
+
+    let local_config_content = if local_config_exists {
+        local_config
+            .as_ref()
+            .and_then(|p| std::fs::read_to_string(p).ok())
+    } else {
+        None
+    };
+
     let locations = ConfigLocations {
-        global_config_exists: global_config.exists(),
+        global_config_exists,
         global_config,
-        local_config_exists: local_config.as_ref().is_some_and(|p| p.exists()),
+        local_config_exists,
         local_config,
     };
 
@@ -163,6 +185,8 @@ async fn run_config(args: ConfigArgs) -> Result<()> {
     let output = ConfigDebugOutput {
         resolved,
         locations,
+        global_config_content,
+        local_config_content,
         environment,
     };
 
@@ -200,6 +224,26 @@ async fn run_config(args: ConfigArgs) -> Result<()> {
             );
         }
 
+        // Display global config content
+        if let Some(ref content) = output.global_config_content {
+            println!();
+            println!("Global Config Content");
+            println!("{}", "-".repeat(40));
+            for line in content.lines() {
+                println!("  {}", line);
+            }
+        }
+
+        // Display local config content
+        if let Some(ref content) = output.local_config_content {
+            println!();
+            println!("Local Config Content");
+            println!("{}", "-".repeat(40));
+            for line in content.lines() {
+                println!("  {}", line);
+            }
+        }
+
         if let Some(ref env) = output.environment {
             println!();
             println!("Environment Variables");