Inactive Sessions Purging designed

specs/009-inactive-sessions-purging/data-model.md

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+# Data Model for Inactive Sessions Purging, Form Data Persistence, and Centralized Snackbars
+
+## Entities
+
+### Session
+Represents a user's active interaction with the application.
+- `sessionId`: Unique identifier (string)
+- `userId`: Identifier of the associated user (string)
+- `lastActivityTime`: Timestamp of the last user activity (Date/number)
+- `persistedFormInputs`: A map or object storing form data (object, e.g., `{ formId: { fieldId: value, ... }, ... }`)
+
+### Form Input
+Represents an individual input field within an unsubmitted form.
+- `formId`: Identifier for the form (string)
+- `fieldId`: Identifier for the input field (string)
+- `value`: The current value of the input field (string or appropriate type)
+
+### Snackbar Notification
+A transient, non-intrusive message displayed to the user.
+- `message`: The text content of the notification (string)
+- `type`: The type of notification (e.g., 'success', 'error', 'info') (string)
+- `duration`: How long the notification should be displayed (number, milliseconds)
+- `position`: Fixed to 'top-right' (string)