jpmschweitzerandClaude
3715a2e191
Implements the Tier-1 pane subsystem from D-006: spawn / list / focus / close / write / resize / tail commands, plus pane.spawned / output / exit / resized / focused / closed events. PaneRegistry owns per-pane PtySession lifecycles and id generation (p_N); a DaemonEventSink seam keeps pane code decoupled from the IPC server package. DaemonServer.broadcast() fans events out to every connected client. Per-client subsystem/id filtering (`tail --filter pane:p_7`) is deferred — Tier 1 broadcasts everything and the subscriber discards. Panes carry a `kind:` field (terminal | claude). Step 7 (builtin.claude) adds the claude-specific pane flow on top of this generic substrate — the subsystem itself stays neutral. 14 new core tests: registry unit coverage (spawn → pane.spawned event, output → base64 events, write/resize/close round-trips, idempotent close, claude kind on the wire) plus dispatcher coverage (argv validation, unknown-id → not-found, text vs bytes_b64, etc). All 37 core tests pass in ~3s under test-core. Co-Authored-By: Claude <noreply@anthropic.com>