feat: video renderer adapter w/ slides + charts + ffmpeg

crates/adapters/wrapup-renderer/src/lib.rs

@@ -0,0 +1,49 @@
+mod slides;
+mod charts;
+mod ffmpeg;
+
+use async_trait::async_trait;
+use domain::errors::DomainError;
+use domain::models::wrapup::WrapUpReport;
+use domain::ports::{VideoRenderConfig, WrapUpVideoRenderer};
+
+pub struct FfmpegWrapUpRenderer;
+
+impl FfmpegWrapUpRenderer {
+    pub fn new() -> Self {
+        Self
+    }
+}
+
+#[async_trait]
+impl WrapUpVideoRenderer for FfmpegWrapUpRenderer {
+    async fn render(
+        &self,
+        report: &WrapUpReport,
+        poster_images: Vec<(String, Vec<u8>)>,
+        config: &VideoRenderConfig,
+    ) -> Result<Vec<u8>, DomainError> {
+        let (width, height) = config.resolution;
+
+        // 1. Generate slide images
+        let mut slide_pngs = Vec::new();
+        slide_pngs.push(slides::render_hero_slide(report, width, height)?);
+        slide_pngs.push(slides::render_ratings_slide(report, width, height)?);
+        if !report.top_directors.is_empty() {
+            slide_pngs.push(slides::render_directors_slide(report, width, height)?);
+        }
+        if !report.top_actors.is_empty() {
+            slide_pngs.push(slides::render_actors_slide(report, width, height)?);
+        }
+        if !report.top_genres.is_empty() {
+            slide_pngs.push(charts::render_genre_chart(report, width, height)?);
+        }
+        slide_pngs.push(slides::render_highlights_slide(report, width, height)?);
+        if !poster_images.is_empty() {
+            slide_pngs.push(slides::render_mosaic_slide(&poster_images, width, height)?);
+        }
+
+        // 2. Stitch into video
+        ffmpeg::stitch_slides(&slide_pngs, config).await
+    }
+}