Include CORS proxy in RPM and fix proxy path lookup

- build-rpm.sh: copy cursor-cors-proxy.js into RPM staging
- cursor-web.sh: fallback to /opt/cursor/share/cursor-web/ for proxy path

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: netsnek

build-rpm.sh

@@ -30,6 +30,7 @@ chmod +x "$RPMDIR/SOURCES/staging/usr/bin/cursor-web"
 mkdir -p "$RPMDIR/SOURCES/staging/opt/cursor/share/cursor-web"
 cp "$SCRIPTDIR/patch-cursor-web.sh" "$RPMDIR/SOURCES/staging/opt/cursor/share/cursor-web/"
 cp "$SCRIPTDIR/workbench-desktop-shim.js" "$RPMDIR/SOURCES/staging/opt/cursor/share/cursor-web/"
+cp "$SCRIPTDIR/cursor-cors-proxy.js" "$RPMDIR/SOURCES/staging/opt/cursor/share/cursor-web/"
 chmod +x "$RPMDIR/SOURCES/staging/opt/cursor/share/cursor-web/patch-cursor-web.sh"
 
 # Copy spec

cursor-web.sh

@@ -10,6 +10,7 @@ SCRIPTDIR="$(cd "$(dirname "$0")" && pwd)"
 
 # Start CORS proxy for Cursor API calls (api2.cursor.sh)
 CORS_PROXY="$SCRIPTDIR/cursor-cors-proxy.js"
+[ ! -f "$CORS_PROXY" ] && CORS_PROXY="$CURSOR_DIR/share/cursor-web/cursor-cors-proxy.js"
 if [ -f "$CORS_PROXY" ]; then
   # Kill any existing proxy on this port
   fuser -k "$CORS_PORT/tcp" 2>/dev/null || true