feat: add resonance compressor and Windows CI

scripts/package-windows.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+"""Validate and archive the two Windows CLAP deliverables; no Linux output."""
+import hashlib
+from pathlib import Path
+import struct
+import zipfile
+
+root = Path(__file__).resolve().parents[1]
+folder = root / "dist/x86_64-pc-windows-gnu"
+names = [
+    "Motif Storyboard.clap", "Resonance Compressor.clap", "LICENSE",
+    "motif-storyboard-setup.md", "resonance-compressor-setup.md", "Roboto-OFL.txt", "resonance-editor.png",
+]
+for name in names[:2]:
+    data = (folder / name).read_bytes()
+    if data[:2] != b"MZ":
+        raise SystemExit(f"{name}: expected Windows PE binary")
+    offset = struct.unpack_from("<I", data, 0x3C)[0]
+    if data[offset:offset + 4] != b"PE\0\0" or struct.unpack_from("<H", data, offset + 4)[0] != 0x8664:
+        raise SystemExit(f"{name}: expected x86-64 Windows DLL")
+    if b"clap_entry\0" not in data:
+        raise SystemExit(f"{name}: CLAP entry export missing")
+checksums = "".join(f"{hashlib.sha256((folder / name).read_bytes()).hexdigest()}  {name}\n" for name in names)
+(folder / "SHA256SUMS").write_text(checksums, encoding="utf-8")
+archive = root / "dist/fl-plugins-windows-x86_64.zip"
+with zipfile.ZipFile(archive, "w", compression=zipfile.ZIP_DEFLATED) as output:
+    for name in names + ["SHA256SUMS"]:
+        output.write(folder / name, arcname=name)
+print(f"Packaged {archive}")