Bump up libcaesium to 1.1.0, now also supporting gif

pptx_image_compress.py

@@ -91,7 +91,7 @@ def compress_with_caesium(original: Path, out_dir: Path, caesium_threads: int |
         raise RuntimeError("[ERROR] 'caesiumclt' wurde nicht gefunden. Bitte CaesiumCLT installieren und in PATH verfügbar machen.")
     out_dir.mkdir(parents=True, exist_ok=True)
     ext = original.suffix.lower()
-    if ext not in {".jpg", ".jpeg", ".png", ".webp"}:
+    if ext not in {".jpg", ".jpeg", ".png", ".webp", ".gif"}:
         return None
     cmd = [exe, "-q", str(quality), "-O", "bigger", "-o", str(out_dir)]
     if caesium_threads is not None:
@@ -173,12 +173,6 @@ def process_single_deck(input_pptx: Path, output_pptx: Path, threads: int, quali
             nonlocal done_count
             ext = img_path.suffix.lower()
             orig_size = img_path.stat().st_size
-            if ext == ".gif":
-                with lock:
-                    done_count += 1
-                    log_lines.append(f"{img_path.name};{human_kb(orig_size)};{human_kb(orig_size)};0;0.0\n")
-                    print_progress(done_count, total)
-                return
             chosen_size = orig_size
             try:
                 out_sub = scratch_dir / f"img_{idx:06d}"