Please integrate AI functionality into Quenza that allows users to automatically generate coaching exercises, reflection prompts, and multimedia content directly from an uploaded PDF document. Detailed Features Requested: AI-Based Exercise Creation from PDF: Allow users to upload a PDF (e.g., worksheet, ebook, training material). AI scans and extracts text, questions, and structures. User selects which parts to convert into interactive exercises (e.g., reflection, journaling, scale ratings). Flexible Text Expansion: Option to keep the extracted text "as-is" or enhance it using AI (e.g., make it more conversational, therapeutic, or structured). Toggle between "Preserve Original," "Expand with AI," or "Summarize." Graphic Generation: AI to generate or suggest relevant visuals (e.g., charts, diagrams, symbolic images) based on content themes or structure. Include drag-and-drop or “suggested graphics” options within the exercise editor. Integration with Existing Builder: Once content is extracted, allow users to seamlessly drag it into the Pathway builder or existing templates. Smart tagging and categorization based on AI analysis of the document.