Add client mode enabling the keep CLI to connect to a remote keep
server over HTTP. Local plugins (compression, meta, filters) run on
the client; the server stores/retrieves binary blobs.
Architecture:
- Client save uses 3-thread streaming pipeline: reader thread (stdin
→ tee/stdout → hash → compress), OS pipe, streamer thread (pipe →
chunked HTTP POST). Memory usage is O(PIPESIZE) regardless of data
size.
- Server accepts compress=false, meta=false, decompress=false query
params for granular control of server-side processing.
- Streaming body handling on server via async channel → sync reader
bridge (ChannelReader).
Key additions:
- src/client.rs: KeepClient with post_stream() for chunked upload
- src/modes/client/: save, get, list, info, delete, diff, status
- --client-url / KEEP_CLIENT_URL configuration
- --client-password / KEEP_CLIENT_PASSWORD for auth
- os_pipe dependency for zero-copy pipe streaming
Co-Authored-By: andrew/openrouter/hunter-alpha <noreply@opencode.ai>
