feat(deepseek api): add printkey subcommand

nushell/modules/pj_deepseek.nu

@@ -2,6 +2,24 @@ const pj_module_dir = (path self | path dirname)
 const pj_cache_dir = ($pj_module_dir | path join '..' 'cache')
 const key_file = ($pj_cache_dir | path join 'deepseek_apikey.toml')
 
+# Read the stored API key from cache, printing an error and returning null on failure.
+def _pj_deepseek_readkey [] {
+    if not ($key_file | path exists) {
+        print $"(char --unicode '274c') No DeepSeek API key found. Use `pj deepseek setkey <api-key>` to set it."
+        return null
+    }
+
+    let config = (open $key_file)
+    let api_key = ($config.apikey?.key? | default "")
+
+    if ($api_key | is-empty) {
+        print $"(char --unicode '274c') Invalid API key in config file. Use `pj deepseek setkey <api-key>` to set a new one."
+        return null
+    }
+
+    $api_key
+}
+
 # Save your DeepSeek API key to local cache.
 export def "pj deepseek setkey" [api_key: string] {
     mkdir $pj_cache_dir
@@ -12,6 +30,13 @@ key = \"($api_key)\"
     print $"(char --unicode '2714') DeepSeek API key saved to ($key_file)"
 }
 
+# Print the stored DeepSeek API key.
+export def "pj deepseek printkey" [] {
+    let api_key = (_pj_deepseek_readkey)
+    if ($api_key == null) { return }
+    print $api_key
+}
+
 # Query DeepSeek account balance information.
 export def "pj deepseek" [] {
     if not ($key_file | path exists) {
@@ -19,13 +44,8 @@ export def "pj deepseek" [] {
         return
     }
 
-    let config = (open $key_file)
-    let api_key = ($config.apikey?.key? | default "")
-
-    if ($api_key | is-empty) {
-        print $"(char --unicode '274c') Invalid API key in config file. Use `pj deepseek setkey <api-key>` to set a new one."
-        return
-    }
+    let api_key = (_pj_deepseek_readkey)
+    if ($api_key == null) { return }
 
     let response = (curl -L -X GET 'https://api.deepseek.com/user/balance' -H 'Accept: application/json' -H $"Authorization: Bearer ($api_key)" | complete)