/data and /tmp standarization

.devcontainer/WORKSPACE.md

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+# NetAlertX Multi-Folder Workspace
+
+This repository uses a multi-folder workspace configuration to provide easy access to runtime directories.
+
+## Opening the Multi-Folder Workspace
+
+After the devcontainer builds, open the workspace file to access all folders:
+
+1. **File** → **Open Workspace from File**
+2. Select `NetAlertX.code-workspace`
+
+Or use Command Palette (Ctrl+Shift+P / Cmd+Shift+P):
+- Type: `Workspaces: Open Workspace from File`
+- Select `NetAlertX.code-workspace`
+
+## Workspace Folders
+
+The workspace includes:
+- **NetAlertX** - Main source code
+- **/tmp** - Runtime temporary files
+- **/tmp/api** - API response cache (JSON files)
+- **/tmp/log** - Application and plugin logs
+
+## Testing Configuration
+
+Pytest is configured to only discover tests in the main `test/` directory, not in `/tmp` folders.