Merge pull request #131 from GiGiDKR/feat-local_support_with_UTF-8_encoding-update

feat: local support with utf 8 encoding

tools/shared/base_tool.py

@@ -1084,6 +1084,26 @@ Consider requesting searches for:
 
 When recommending searches, be specific about what information you need and why it would improve your analysis. Always remember to instruct Claude to use the continuation_id from this response when providing search results."""
 
+    def get_language_instruction(self) -> str:
+        """
+        Generate language instruction based on LOCALE configuration.
+
+        Returns:
+            str: Language instruction to prepend to prompt, or empty string if
+                 no locale set
+        """
+        # Read LOCALE directly from environment to support dynamic changes
+        # This allows tests to modify os.environ["LOCALE"] and see the changes
+        import os
+
+        locale = os.getenv("LOCALE", "").strip()
+
+        if not locale:
+            return ""
+
+        # Simple language instruction
+        return f"Always respond in {locale}.\n\n"
+
     # === ABSTRACT METHODS FOR SIMPLE TOOLS ===
 
     @abstractmethod