Bilterm v3.0.0 — Agent Messaging, Session & Window Management, Session Packing Viewer & Daemon Supervisor

Added

• Agent-to-Agent Messaging & Coordination (Phase 52, AGT-01..03, UNI-R01):
  • Addressing & Bounded Mailboxes (AGT-01): Stable per-pane agent names (:agent name [id] <name>, agent.name, env BILTERM_AGENT) mapped in AgentMailRegistry with ordered per-recipient mailboxes (MAX_INBOX_DEPTH = 64, MAX_BODY_BYTES = 8192).
  • Three Delivery Modes (AGT-02): mailbox (default queued delivery), nudge (one-line notification injected into the target pane only when idle/waiting and automatically suppressed during !ECHO password lock or ALT_SCREEN), and file (0600 private payload file written via secure_fs under agent-mail/<to>/msg-<id>.txt with path attached), plus blocking/polled agent.wait with reply matching and timeout.
  • Coordination, Safety & Surfaces (AGT-03): :agent <name|send|broadcast|inbox|ack|list|enable>, JSON-RPC agent.{name,send,broadcast,inbox,ack,list,wait}, MCP tool bilterm_agent_mail, dynamic MCP resource bilterm://agent/<name>/inbox, /events AutomationEvent::AgentMessage, unread mail badges (✉N) in the AGENTS list window and Navigator drawer, opt-in [api] allow_agent_messaging gate, per-sender rate limit (32/min), and reply_to hop-count loop guard (MAX_HOPS = 8).
• Session & Window Management (Phase 53, SES-01..05, UNI-R01):
  • Cross-Session Window Move (SES-01): Live window migration between sessions (:window move <session>, Navigator m key, and right-click context menu) preserving the live PTY process, scrollback buffer, running command, and z-order/focus invariants.
  • Window & Session Rename (SES-02): :window rename [id] <new> and :session rename <old> <new> with validate_safe_name/sanitize_display enforcement and deterministic duplicate disambiguation.
  • Multi-Select & Atomic Bulk Operations (SES-03): Multi-select windows in the Navigator (Space, Shift+Up/Down, Ctrl+A, Ctrl+Click, :window select <toggle|range|all|none|invert|id>) with visual [✓] badges and all-or-nothing bulk actions (:window bulk <move|close|force-close|rename-prefix|tile|pin>) honoring exit-guard protection.
  • Single-Step Topology Undo & Persistence (SES-04): TopologyUndoEntry undo stack (:window undo, Navigator u key) restoring placement, name, order, and selection across moves, renames, and bulk operations, persisted across TOML session save/load.
  • Automation API Parity (SES-05): JSON-RPC window.{move,rename,select,bulk,undo} and session.rename, plus MCP tool bilterm_window_manage.
• Session Packing Viewer & Drag-and-Drop (Phase 54, VIEW-01..04, UNI-R01):
  • Deterministic 2D Squarified Treemap (VIEW-01): Pure layout engine (pack_sessions_treemap) packing sessions and nested sub-sessions into proportional 2D containers with character-cell aspect ratio compensation and zero-panic tiny-rect fallback.
  • Non-Modal SESSION MAP Window (VIEW-02): First-class floating, pinnable ([•]), and dockable ([□]) window (:sessions map, :packing) rendering packed session containers and window cards in both TUI (Borland box-drawing) and --gui vector mode.
  • Mouse Drag-and-Drop & Keyboard Equivalents (VIEW-03, VIEW-04): Drag window cards across session containers by mouse (highlighting valid drop targets, Esc to cancel) or via keyboard pickup/target/drop (Space/m pickup, Tab/arrows target session, Enter drop, Esc cancel), plus JSON-RPC session.map and MCP tool bilterm_session_map.
• Daemon Supervisor & Multi-Daemon Awareness (Phase 55, DAEM-05..08, UNI-R01):
  • Singleton Lock & Auto-Dispatch (DAEM-05): Exclusive flock/PID DaemonLock (daemon-singleton.lock) under 0700 secure_fs runtime dir with stale-PID verification (kill(pid, 0)) and automatic stale socket recovery; bilterm ctl auto-spawns the singleton daemon on first need.
  • Opt-In Multi-Daemon Isolation (DAEM-06): --daemon --name <name> and [daemon] mode = "multi" isolate each named daemon with its own daemon-<name>.sock, daemon-<name>.lock, and metadata entry.
  • Live Peer Registry, Handshake Safety & Cross-Daemon Find (DAEM-07, DAEM-08): DaemonRegistry with atomic 0600 JSON metadata and dead-peer pruning, CARGO_PKG_VERSION wire handshake check, :daemon <list|status|start|stop|switch|prune>, leader chords Ctrl+X D <L|S|N|Q|W>, Tools > Daemons menubar dropdown, JSON-RPC daemon.*, MCP tool bilterm_daemon, and cross-daemon :find discovery (Origin::Daemon).