oby-core vs oby-tee vs oby-hook

Core types and Capturer trait for oby — the wire-format and plugin contract shared by oby-hook, oby-tee, and the oby wrapper.

In-pipeline helper for oby. Reads stdin, streams bytes to the wrapper's per-agent unix socket with a JSON header, fail-open. Injected by oby-hook's PreToolUse rewrite to capture stdout/stderr that would otherwise be discarded.

PreToolUse / PostToolUse / SubagentStop hook dispatcher for oby. Routes Claude Code tool-call payloads to per-tool Capturers, rewrites Bash commands to recover discarded stdout/stderr via oby-tee, composes with peer hooks, and reports back to the oby wrapper over a unix socket.