## Why

Users need a quick, concise view of fetched news without reading long article text. Adding a TL;DR summary flow improves scan speed, reading experience, and engagement while keeping source transparency.

## What Changes

- **New Capabilities:**
  - Generate concise article summaries via Perplexity when news is fetched.
  - Store structured summary content in the database using the required display template.
  - Fetch and attach an appropriate royalty-free image for each summarized article.
  - Render summary content in a modal dialog from the landing page.
  - Add Umami event tagging for modal opens, closes, and source link-outs.
- **Backend:**
  - Extend ingestion to call Perplexity summary generation and persist summary output.
  - Integrate royalty-free image sourcing (prefer MCP path when available).
- **Frontend:**
  - Add summary modal UI and interaction flow.
  - Add event tracking for all required user actions in the modal.

## Capabilities

### New Capabilities
- `article-tldr-summary`: Generate and persist concise TL;DR + summary content per fetched article using Perplexity.
- `summary-modal-experience`: Display summary content in a modal dialog using the standardized template format.
- `royalty-free-image-enrichment`: Attach appropriate royalty-free images for summarized articles, leveraging MCP integration when available.
- `summary-analytics-tagging`: Track summary modal opens, closes, and external source link-outs via Umami event tags.

### Modified Capabilities
- None.

## Impact

- **Code:** Ingestion pipeline, storage model/schema, API response payloads, and frontend modal interactions will be updated.
- **APIs:** Existing news payloads will include summary/template-ready fields and image metadata.
- **Dependencies:** Reuses Perplexity; may add/enable royalty-free image provider integration (including MCP route if available).
- **Infrastructure:** No major topology change expected.
- **Data:** Database will store summary artifacts and associated image/source metadata.
