Add mockapi source files and tests

src/mockapi/core/hot_reload.py

@@ -6,7 +6,7 @@ import sys
 import threading
 import time
 from pathlib import Path
-from typing import Optional
+from typing import Optional, Callable
 
 from watchdog.observers import Observer
 from watchdog.events import FileSystemEventHandler
@@ -16,17 +16,12 @@ class HotReloadHandler(FileSystemEventHandler):
     """Handler for file system events."""
 
     def __init__(self, spec_file: str, debounce_ms: int = 500):
-        """Initialize the handler.
+        """Initialize the handler."""
-
-        Args:
-            spec_file: Path to the spec file to watch
-            debounce_ms: Debounce delay in milliseconds
-        """
         super().__init__()
         self.spec_file = Path(spec_file).resolve()
         self.debounce_ms = debounce_ms
         self.last_reload_time = 0
-        self.reload_callback: Optional[callable] = None
+        self.reload_callback: Optional[Callable] = None
 
     def on_modified(self, event):
         """Handle file modification events."""
@@ -57,14 +52,7 @@ class HotReloader:
         host: str = "0.0.0.0",
         debounce_ms: int = 500,
     ):
-        """Initialize the hot reloader.
+        """Initialize the hot reloader."""
-
-        Args:
-            spec_file: Path to the OpenAPI spec file
-            port: Server port
-            host: Server host
-            debounce_ms: Debounce delay for rapid changes
-        """
         self.spec_file = Path(spec_file).resolve()
         self.port = port
         self.host = host