Unify Iron Coast mission names and cinematic mission previews

mods/aurora/build_briefing.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+"""Rebuild Aurora's SD/HD briefing from its unchanged generated master."""
+from pathlib import Path
+import hashlib
+from PIL import Image, ImageOps
+
+ROOT = Path(__file__).resolve().parent
+source = ROOT / 'art/briefing-generated-master.png'
+expected = 'ddb0b50b344611d49038ac2d5b8e4f609b66daa8c7e3799d4530804780cb1a3f'
+if hashlib.sha256(source.read_bytes()).hexdigest() != expected:
+    raise SystemExit('Unexpected briefing master; preserve the recorded original bytes.')
+with Image.open(source) as image:
+    image.load()
+    hd = ImageOps.fit(image.convert('RGB'), (1280, 800), Image.Resampling.LANCZOS, centering=(0.5, 0.5))
+    hd.save(ROOT / 'art/briefing_hd.png')
+    hd.resize((320, 200), Image.Resampling.LANCZOS).save(ROOT / 'art/briefing_sd.png')