fix(db): scale TV size bands to episode size (#97)

crates/arr-daemon/src/tv_grab.rs

@@ -756,7 +756,7 @@ mod tests {
     }
 
     /// A season pack and its three episodes, all eligible under the seeded
-    /// TV main policy (§5.5 bands: 2160p floor 8 GiB).
+    /// TV main policy (§5.5 bands: 2160p floor 3 GiB, per #95).
     const TV_RSS: &str = r#"<rss><channel>
       <item>
         <title>Fallout.S01.2160p.WEB-DL.DDP5.1.Atmos</title>

crates/arr-db/migrations/0011_tv_episode_size_bands.sql

@@ -0,0 +1,10 @@
+-- The bands seeded in 0005 copied the movie policy's numbers verbatim: 2160p
+-- floor 8 GiB, 1080p floor 3 GiB. Those fit a whole film; a single episode
+-- (~40-60 min) at 1080p WEB-DL is typically 1-2 GiB, so §5.5's hard floor
+-- rejected it outright (#95). Season packs still clear these floors easily
+-- and just take the over-target penalty, which is the intended behaviour.
+UPDATE policies SET size_bands = json('{
+    "2160p": {"floor_gib": 3, "target_gib": 6, "penalty_points_per_gib_over": 60},
+    "1080p": {"floor_gib": 1, "target_gib": 2, "penalty_points_per_gib_over": 60}
+}')
+WHERE name IN ('TV — main', 'TV — kids');

crates/arr-db/src/policy.rs

@@ -477,4 +477,37 @@ mod tests {
         let (_dir, db) = seeded().await;
         assert!(db.movie_policy(404).await.unwrap().is_none());
     }
+
+    /// #95: the TV bands used to copy the movie policy's floors verbatim, so a
+    /// typical 1080p single-episode WEB-DL (1-2 GiB) sat below the 3 GiB movie
+    /// floor and was hard-filtered outright.
+    #[tokio::test]
+    async fn a_single_episode_web_dl_clears_the_tv_floor() {
+        let (_dir, db) = seeded().await;
+        sqlx::query(
+            "INSERT INTO series (tmdb_id, title, root_id)
+             SELECT 1, 'Fallout', id FROM roots WHERE kind = 'tv' AND audience = 'main'",
+        )
+        .execute(db.pool())
+        .await
+        .unwrap();
+        sqlx::query("INSERT INTO seasons (series_id, number) VALUES (1, 1)")
+            .execute(db.pool())
+            .await
+            .unwrap();
+        sqlx::query("INSERT INTO episodes (season_id, number, title) VALUES (1, 1, 'The End')")
+            .execute(db.pool())
+            .await
+            .unwrap();
+
+        let loaded = db.episode_policy(1).await.unwrap().expect("episode 1");
+        let band = loaded.policy.size_bands[&Resolution::R1080p];
+        assert_eq!(band.floor_bytes, 1 << 30);
+
+        let one_and_a_half_gib = 1536 << 20;
+        assert_eq!(
+            arr_core::score::is_below_floor(&loaded.policy, Resolution::R1080p, one_and_a_half_gib),
+            Some(false)
+        );
+    }
 }