Refactor logging configuration to use AppData directory

- Updated config.example.json to set default log_file to null.
- Modified config.py to resolve log file paths relative to the AppData directory.
- Added methods to get default log directory and log file path in AppData.
- Ensured logging behavior is consistent whether a log_file is specified or not.

.env.example

@@ -10,7 +10,8 @@ WEBAPP_URL=file:///./webapp/index.html
 
 # Logging
 LOG_LEVEL=DEBUG
-LOG_FILE=logs/webdrop_bridge.log
+# LOG_FILE defaults to AppData/Roaming/webdrop_bridge/logs/webdrop_bridge.log if not set
+# LOG_FILE=logs/webdrop_bridge.log
 ENABLE_LOGGING=true
 
 # Security - Path Whitelist

CONFIG_README.md

@@ -103,6 +103,13 @@ Z:\aN5PysnXIuRECzcRbvHkjL7g0\Hintergrund_Agravity.png
   - Options: `"DEBUG"`, `"INFO"`, `"WARNING"`, `"ERROR"`, `"CRITICAL"`
   - Default: `"INFO"`
 
+- **`log_file`** (string, optional): Path to log file
+  - If `null` or not specified: Logs to `%APPDATA%\webdrop_bridge\logs\webdrop_bridge.log` (Windows) or `~/.local/share/webdrop_bridge/logs/webdrop_bridge.log` (macOS/Linux)
+  - If relative path: Resolved relative to the app data directory (same as above location)
+  - If absolute path: Used as-is
+  - Default: `null` (uses AppData directory for permissions compatibility)
+  - ℹ️ **Important**: Logs are always stored in the user's AppData directory to ensure the app can write logs in both development and installed scenarios
+
 - **`enable_logging`** (boolean): Whether to write logs to file
   - Default: `true`
 

build/WebDropBridge.wxs

@@ -5,7 +5,7 @@
         Manufacturer="HIM-Tools"
         UpgradeCode="12345678-1234-1234-1234-123456789012">
 
-        <Package InstallerVersion="200" Compressed="yes" InstallScope="perUser" Platform="x64" />
+        <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" Platform="x64" />
         <Media Id="1" Cabinet="WebDropBridge.cab" EmbedCab="yes" />
         
         <!-- Required property for WixUI_InstallDir dialog set -->
@@ -30,7 +30,7 @@
         </Feature>
 
         <Directory Id="TARGETDIR" Name="SourceDir">
-            <Directory Id="LocalAppDataFolder">
+            <Directory Id="ProgramFiles64Folder">
                 <Directory Id="INSTALLFOLDER" Name="WebDrop Bridge" />
             </Directory>
             <Directory Id="ProgramMenuFolder">

config.example.json

@@ -15,7 +15,7 @@
   "auto_check_updates": true,
   "update_check_interval_hours": 24,
   "log_level": "INFO",
-  "log_file": "logs/webdrop_bridge.log",
+  "log_file": null,
   "window_width": 1024,
   "window_height": 768,
   "enable_logging": true

src/webdrop_bridge/config.py

@@ -126,8 +126,15 @@ class Config:
         # Get log file path
         log_file = None
         if data.get("enable_logging", True):
-            log_file_str = data.get("log_file", "logs/webdrop_bridge.log")
-            log_file = Path(log_file_str).resolve()
+            log_file_str = data.get("log_file", None)
+            if log_file_str:
+                log_file = Path(log_file_str)
+                # If relative path, resolve relative to app data directory instead of cwd
+                if not log_file.is_absolute():
+                    log_file = Config.get_default_log_dir() / log_file
+            else:
+                # Use default log path in app data
+                log_file = Config.get_default_log_path()
 
         app_name = data.get("app_name", "WebDrop Bridge")
         window_title = data.get("window_title", f"{app_name} v{__version__}")
@@ -178,7 +185,7 @@ class Config:
         else:
             app_version = os.getenv("APP_VERSION")
         log_level = os.getenv("LOG_LEVEL", "INFO").upper()
-        log_file_str = os.getenv("LOG_FILE", "logs/webdrop_bridge.log")
+        log_file_str = os.getenv("LOG_FILE", None)
         allowed_roots_str = os.getenv("ALLOWED_ROOTS", "Z:/,C:/Users/Public")
         allowed_urls_str = os.getenv("ALLOWED_URLS", "")
         webapp_url = os.getenv("WEBAPP_URL", "https://dev.agravity.io/")
@@ -227,7 +234,14 @@ class Config:
         # Create log file path if logging enabled
         log_file = None
         if enable_logging:
-            log_file = Path(log_file_str).resolve()
+            if log_file_str:
+                log_file = Path(log_file_str)
+                # If relative path, resolve relative to app data directory instead of cwd
+                if not log_file.is_absolute():
+                    log_file = Config.get_default_log_dir() / log_file
+            else:
+                # Use default log path in app data
+                log_file = Config.get_default_log_path()
 
         # Validate webapp URL is not empty
         if not webapp_url:
@@ -320,7 +334,7 @@ class Config:
         """Get the default configuration file path.
 
         Returns:
-            Path to default config file
+            Path to default config file in user's AppData/Roaming
         """
         import platform
         if platform.system() == "Windows":
@@ -329,6 +343,32 @@ class Config:
             base = Path.home() / ".config"
         return base / "webdrop_bridge" / "config.json"
 
+    @staticmethod
+    def get_default_log_dir() -> Path:
+        """Get the default directory for log files.
+        
+        Always uses user's AppData directory to ensure permissions work
+        correctly in both development and installed scenarios.
+
+        Returns:
+            Path to default logs directory in user's AppData/Roaming
+        """
+        import platform
+        if platform.system() == "Windows":
+            base = Path.home() / "AppData" / "Roaming"
+        else:
+            base = Path.home() / ".local" / "share"
+        return base / "webdrop_bridge" / "logs"
+
+    @staticmethod
+    def get_default_log_path() -> Path:
+        """Get the default log file path.
+
+        Returns:
+            Path to default log file in user's AppData/Roaming/webdrop_bridge/logs
+        """
+        return Config.get_default_log_dir() / "webdrop_bridge.log"
+
     def __repr__(self) -> str:
         """Return developer-friendly representation."""
         return (