refactor: Remove unused ConfigurationError exception class (#41)

The ConfigurationError exception class was defined but never raised or
caught anywhere in the codebase. This dead code added unnecessary lines
to the exceptions module with no functional purpose.

Co-authored-by: Claude <noreply@anthropic.com>

Author: ivyleavedtoadflax

progress.md

@@ -263,3 +263,20 @@ Users can use `remote ami list-templates` which provides the same functionality
 **Changes:**
 - Removed the `list_launch_templates()` function from `remote/instance.py`
 - Removed the corresponding test `test_list_launch_templates_command()` from `tests/test_instance.py`
+
+---
+
+## 2026-01-18: Remove unused `ConfigurationError` exception class
+
+**File:** `remote/exceptions.py`
+
+**Issue:** The `ConfigurationError` exception class (lines 132-142) was defined but never used anywhere in the codebase:
+1. No code raised this exception
+2. No code caught this exception
+3. No tests referenced this exception class
+4. The class was complete dead code adding unnecessary lines to the module
+
+The exception was designed for configuration-related errors but was never integrated into the config handling code.
+
+**Changes:**
+- Removed the `ConfigurationError` class definition from `remote/exceptions.py`

remote/exceptions.py

@@ -129,19 +129,6 @@ def _get_user_friendly_message(self, error_code: str, original_message: str) ->
         return error_mappings.get(error_code, f"AWS Error: {original_message}")
 
 
-class ConfigurationError(RemotePyError):
-    """Raised when there are configuration-related errors."""
-
-    def __init__(self, config_issue: str, details: str | None = None):
-        message = f"Configuration error: {config_issue}"
-        if not details:
-            details = (
-                "Check your configuration file at ~/.config/remote.py/config.ini\n"
-                "Run 'remote config show' to view current configuration"
-            )
-        super().__init__(message, details)
-
-
 class ResourceNotFoundError(RemotePyError):
     """Raised when a requested AWS resource (volume, snapshot, etc.) is not found."""