diff --git a/.gitignore b/.gitignore
index acb54dd..f6ce4ab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@ env/
 ENV/
 env.bak/
 venv.bak/
+.env
 
 # Project specific caches
 .pytest_cache/
diff --git a/README.md b/README.md
index 90d1f67..b040dd6 100644
--- a/README.md
+++ b/README.md
@@ -79,6 +79,7 @@ If you prefer scripts or direct commands, all UI options also work via CLI subco
 
 ### 1. Configuring your Artificial Intelligence
 You can choose which cognitive engine GitAuditor will use (Ollama to run 100% offline, OpenAI or OpenRouter for advanced cloud models).
+If you choose **Azure OpenAI**, you must configure your custom resource endpoint (e.g., `https://<your-resource>.services.ai.azure.com/openai/v1`) using the command below.
 ```bash
 gitauditor config
 ```
diff --git a/README_pt.md b/README_pt.md
index 1cea63e..7ad20b9 100644
--- a/README_pt.md
+++ b/README_pt.md
@@ -77,6 +77,7 @@ Se você prefere scripts ou comandos diretos, todas as opções da UI também fu
 
 ### 1. Configurando sua Inteligência Artificial
 Você pode escolher qual motor cognitivo o GitAuditor vai usar (Ollama para rodar 100% offline, OpenAI ou OpenRouter para modelos avançados em nuvem).
+Se você escolher **Azure OpenAI**, é obrigatório configurar seu endpoint customizado (ex: `https://<your-resource>.services.ai.azure.com/openai/v1`) executando o comando abaixo.
 ```bash
 gitauditor config
 ```
diff --git a/src/gitauditor/cli.py b/src/gitauditor/cli.py
index 30c86a6..8f4b4dc 100644
--- a/src/gitauditor/cli.py
+++ b/src/gitauditor/cli.py
@@ -11,13 +11,22 @@
 from rich.prompt import Prompt
 from rich.table import Table
 
-lang_to_use = "pt_BR"
+import locale
+
+try:
+    system_lang = locale.getdefaultlocale()[0] or "en_US"
+except Exception:
+    system_lang = "en_US"
+
+default_lang = "pt_BR" if system_lang.startswith("pt") else "en_US"
+lang_to_use = default_lang
+
 try:
     config_path = os.path.expanduser("~/.gitauditor.json")
     if os.path.exists(config_path):
         with open(config_path) as f:
             cfg = json.load(f)
-            lang_to_use = cfg.get("lang", "pt_BR")
+            lang_to_use = cfg.get("lang", default_lang)
 except Exception as e:
     import sys
     print(f"Aviso: Erro ao carregar config i18n: {e}", file=sys.stderr)
diff --git a/src/gitauditor/commands/config_cmd.py b/src/gitauditor/commands/config_cmd.py
index 0b93e81..9f9f5db 100644
--- a/src/gitauditor/commands/config_cmd.py
+++ b/src/gitauditor/commands/config_cmd.py
@@ -84,7 +84,7 @@ def config_command():
         current_model = ai_config.get("model", "gpt-4o")
         ai_config["model"] = Prompt.ask("Qual deployment name (modelo)?", default=current_model)
 
-        current_url = ai_config.get("base_url", "https://renansousa-2956-resource.services.ai.azure.com/openai/v1")
+        current_url = ai_config.get("base_url", "https://<your-resource>.services.ai.azure.com/openai/v1")
         ai_config["base_url"] = Prompt.ask("URL base do Azure AI", default=current_url)
 
         use_default_cred = Prompt.ask("Usar Entra ID (DefaultAzureCredential)? [S/n]", default="s")
diff --git a/src/gitauditor/core/ai_api.py b/src/gitauditor/core/ai_api.py
index 8454d80..eb7859c 100644
--- a/src/gitauditor/core/ai_api.py
+++ b/src/gitauditor/core/ai_api.py
@@ -26,7 +26,7 @@ def __init__(self):
                 "base_url", "https://openrouter.ai/api/v1"
             )
         elif self.provider == "azure":
-            self.base_url = self.ai_config.get("base_url", "https://renansousa-2956-resource.services.ai.azure.com/openai/v1")
+            self.base_url = self.ai_config.get("base_url", "https://<your-resource>.services.ai.azure.com/openai/v1")
         else:
             self.base_url = self.ai_config.get("base_url", "")
 
diff --git a/src/gitauditor/core/policy_engine.py b/src/gitauditor/core/policy_engine.py
index 70c13c3..16b6ee2 100644
--- a/src/gitauditor/core/policy_engine.py
+++ b/src/gitauditor/core/policy_engine.py
@@ -65,6 +65,10 @@ def check_repository(repo_path: str) -> dict[str, Any]:
         # 4. Critical Security Risks (.env check)
         # Verify if .env is tracked by git (not just existing on disk)
         import subprocess
+        
+        if not os.path.isdir(repo_path) or not os.path.exists(os.path.join(repo_path, ".git")):
+            return report
+
         try:
             res = subprocess.run(["git", "ls-files", ".env"], cwd=repo_path, capture_output=True, text=True, timeout=15)
             is_env_tracked = res.stdout.strip() != ""