Fix Battle cards not detected as horizontal during ingest

Real Battle cards are layout "transform" (they flip into a creature),
not "battle" as previously assumed — no shipped card actually uses
that layout, so the horizontal flag never got set for them. Detect
Battle orientation from the front face's type line instead.

crates/mtgc-core/src/ingest.rs

@@ -546,7 +546,19 @@ fn load_oracle_cards(conn: &Connection, reader: impl Read, cancel: &CancelToken)
             // Battles and Planes/Phenomena store their card image portrait-shaped
             // with the content itself rotated — viewers must rotate it 90° to
             // read it right-side up (verified against real Scryfall images).
-            let horizontal = matches!(c.layout.as_str(), "battle" | "planar");
+            // Battles are *not* `layout: "battle"` in Scryfall's data — every
+            // released Battle (the "Invasion of ..." Sieges) transforms into a
+            // creature, so it's `layout: "transform"` with the Battle type only
+            // on the front face. Detect it from the front face's type instead
+            // of the layout.
+            let front_type_line = type_line.split(" // ").next().unwrap_or("");
+            let is_battle = front_type_line
+                .split('—')
+                .next()
+                .unwrap_or("")
+                .split_whitespace()
+                .any(|w| w == "Battle");
+            let horizontal = is_battle || c.layout == "planar";
 
             let changed = ins_card.execute(params![
                 oracle_id,
@@ -1020,8 +1032,13 @@ mod tests {
     #[test]
     fn captures_horizontal_flag_for_battle_and_planar_layouts_only() {
         let oracle = r#"[
-          {"oracle_id":"oid-battle","name":"Invasion of Zendikar","layout":"battle","cmc":4.0,
+          {"oracle_id":"oid-battle","name":"Invasion of Zendikar // Awakened Skyclave",
-           "type_line":"Battle — Siege","color_identity":["G"],"keywords":[]},
+           "layout":"transform","cmc":4.0,
+           "card_faces":[
+             {"type_line":"Battle — Siege"},
+             {"type_line":"Creature — Elemental"}
+           ],
+           "color_identity":["G"],"keywords":[]},
           {"oracle_id":"oid-plane","name":"Academy at Tolaria West","layout":"planar","cmc":0.0,
            "type_line":"Plane — Dominaria","color_identity":[],"keywords":[]},
           {"oracle_id":"oid-scheme","name":"A Display of My Dark Power","layout":"scheme","cmc":0.0,
@@ -1045,9 +1062,12 @@ mod tests {
                 != 0
         };
 
+        // Real Battle cards are `layout: "transform"` (they flip into a
+        // creature once defeated) — only the front face carries the Battle
+        // type, so detection has to key off that, not the layout string.
         assert!(horizontal("oid-battle"));
         assert!(horizontal("oid-plane"));
-        // Schemes are oversized but not rotated — only battle/planar layouts are.
+        // Schemes are oversized but not rotated — only Battle/planar cards are.
         assert!(!horizontal("oid-scheme"));
         assert!(!horizontal("oid-normal"));
     }