## ADDED Requirements

### Requirement: Modal CTAs for YouTube and Spotify
The media modal MUST render two CTA actions:
- "Follow on YouTube" / "Follow on Spotify" — links to the channel/podcast profile page
- "View on YouTube" / "View on Spotify" — links to the specific content item URL

The CTA label and destination MUST be determined by the content source:
- For `youtube` source: "Follow on YouTube" links to the YouTube channel URL, "View on YouTube" links to the video URL
- For `podcast` source: "Follow on Spotify" links to the podcast profile URL, "View on Spotify" links to the episode URL

Each CTA MUST be rendered using the existing `CtaLink` component conventions (or equivalent markup) with UTM parameters appended.

#### Scenario: YouTube video modal shows YouTube CTAs
- **WHEN** the media modal is displaying a YouTube video
- **THEN** the modal renders "Follow on YouTube" (linking to the channel) and "View on YouTube" (linking to the video URL) as CTA actions

#### Scenario: Podcast episode modal shows Spotify CTAs
- **WHEN** the media modal is displaying a podcast episode
- **THEN** the modal renders "Follow on Spotify" (linking to the podcast profile) and "View on Spotify" (linking to the episode URL) as CTA actions

### Requirement: Modal CTA tracking
Each CTA rendered inside the media modal MUST emit a `cta_click` event conforming to the existing CTA tracking requirements.

The modal CTAs MUST use:
- `placement=media_modal`
- `target_id` following the `modal.cta.{action}.{platform}` namespace
- `platform` set to `youtube` or `spotify` (mapped from content source)

#### Scenario: Modal CTA emits cta_click event
- **WHEN** a user clicks the "View on YouTube" CTA inside the media modal
- **THEN** the system emits a `cta_click` event with `target_id=modal.cta.view.youtube`, `placement=media_modal`, `platform=youtube`, and `target_url` set to the video URL

#### Scenario: Modal CTA includes UTM parameters
- **WHEN** a modal CTA is rendered
- **THEN** the CTA link URL includes UTM parameters for attribution (utm_source, utm_medium, utm_campaign, utm_content)