chore: import upstream snapshot with attribution

test_server.py

@@ -0,0 +1,78 @@
+"""
+Presenton Version Server (test/dev stub)
+
+This simulates the remote version-check endpoint that the Electron app polls.
+In production, replace UPDATE_SERVER_URL in the Electron app with your hosted URL.
+
+Usage:
+    python test_server.py [--port 8765]
+
+Endpoint:
+    GET /versions  -> JSON with latest version and download info
+"""
+
+import json
+import argparse
+from http.server import BaseHTTPRequestHandler, HTTPServer
+from urllib.parse import urlparse
+
+VERSIONS = {
+    "latest": "0.7.0",
+    "versions": [
+        "0.5.0",
+        "0.6.0",
+        "0.6.1-beta",
+        "0.7.0",
+    ],
+    "download_url": "https://github.com/presenton/presenton/releases/latest",
+    "release_notes": "Bug fixes, performance improvements, and new AI model support.",
+}
+
+
+class VersionHandler(BaseHTTPRequestHandler):
+    def do_GET(self):
+        parsed = urlparse(self.path)
+
+        if parsed.path == "/versions":
+            body = json.dumps(VERSIONS, indent=2).encode()
+            self.send_response(200)
+            self.send_header("Content-Type", "application/json")
+            self.send_header("Content-Length", str(len(body)))
+            self.send_header("Access-Control-Allow-Origin", "*")
+            self.end_headers()
+            self.wfile.write(body)
+        else:
+            self.send_response(404)
+            self.end_headers()
+            self.wfile.write(b'{"error": "Not found"}')
+
+    def do_OPTIONS(self):
+        self.send_response(200)
+        self.send_header("Access-Control-Allow-Origin", "*")
+        self.send_header("Access-Control-Allow-Methods", "GET, OPTIONS")
+        self.end_headers()
+
+    def log_message(self, format, *args):
+        print(f"[VersionServer] {self.address_string()} - {format % args}", flush=True)
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Presenton version check server")
+    parser.add_argument("--port", type=int, default=8765, help="Port to listen on")
+    parser.add_argument("--host", type=str, default="0.0.0.0", help="Host to bind to")
+    args = parser.parse_args()
+
+    server = HTTPServer((args.host, args.port), VersionHandler)
+    print(f"Presenton version server running at http://{args.host}:{args.port}", flush=True)
+    print(f"  GET /versions  -> version information", flush=True)
+    print(f"  Current 'latest' set to: {VERSIONS['latest']}", flush=True)
+    print("Press Ctrl+C to stop.", flush=True)
+
+    try:
+        server.serve_forever()
+    except KeyboardInterrupt:
+        print("\nServer stopped.", flush=True)
+
+
+if __name__ == "__main__":
+    main()