Add ollie9p_open, ollie9p_read_fid, ollie9p_close_fid for streaming
file reads. This allows the KDE GUI to read chat/statewait/eventwait
files natively without spawning subprocesses.
Go shared library (c-shared buildmode) that wraps 9fans.net/go/plan9/client.
Provides C API for persistent 9P connections, eliminating process spawn
overhead for GUI operations.
Exports: ollie9p_connect, ollie9p_read, ollie9p_write, ollie9p_rdwr,
ollie9p_ls, ollie9p_stat, ollie9p_remove, ollie9p_create, ollie9p_mkdir,
ollie9p_rename, ollie9p_close, ollie9p_last_error, ollie9p_free
Build: go build -buildmode=c-shared -o libollie9p.so
Install: just lib9p (installs to ~/.local/lib and ~/.local/include)