add D-77: drive Claude via stream-json; clide-owned unified session model

Accepted (phased). Pivot the Claude pane from the interactive tmux TUI to
the stream-json control protocol: structured events instead of transcript
tailing, permissions + AskUserQuestion handled natively via canUseTool,
persistence via --resume. Claude's tmux agent-team mode is headless-
incompatible, so teams become clide-orchestrated — N managed sessions
coordinated by a clide-hosted MCP broker, with team-awareness injected via
--append-system-prompt/--agents.

Captures the unified-session-model upside: teammate / secondary tab /
forked branch / inline subagent collapse into one primitive (a managed
session rendered as a pane), with the sidebar as the cockpit. Amends D-41
(persistence) and evolves D-75 (rendering source). Phase 1 single-agent
first; phase 2 the unified model.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.pql/changelog/ticket_history/2026-05.sql

@@ -2220,3 +2220,4 @@ INSERT INTO ticket_history (ticket_id, field, old_value, new_value, changed_by,
 INSERT INTO ticket_history (ticket_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('T-157', 'status', 'backlog', 'in_progress', NULL, '2026-05-23 20:52:47', '2026-05-23 20:52:47', '2026-05-23 20:52:47', NULL, 'b2b31ab5fe70fb5027773775b0945bd5', 1) ON CONFLICT(hash) DO NOTHING;
 INSERT INTO ticket_history (ticket_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('T-157', 'status', 'in_progress', 'done', NULL, '2026-05-23 20:57:07', '2026-05-23 20:57:07', '2026-05-23 20:57:07', NULL, 'ce114090979d31512a9aa09f1c9311a1', 1) ON CONFLICT(hash) DO NOTHING;
 INSERT INTO ticket_history (ticket_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('T-159', 'status', 'backlog', 'done', NULL, '2026-05-24 08:54:30', '2026-05-24 08:54:30', '2026-05-24 08:54:30', NULL, '478956f24d051f603aab2c7ceec328b2', 1) ON CONFLICT(hash) DO NOTHING;
+INSERT INTO ticket_history (ticket_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('T-161', 'status', 'backlog', 'done', NULL, '2026-05-24 09:45:07', '2026-05-24 09:45:07', '2026-05-24 09:45:07', NULL, 'd7b99c3dff59fc5a70a7866567fbfe0f', 1) ON CONFLICT(hash) DO NOTHING;

.pql/changelog/tickets/2026-05.sql

@@ -2682,3 +2682,12 @@ INSERT INTO tickets (id, type, parent_id, title, description, status, priority,
 - Plays well with the existing Enter-submit / Shift+Enter-newline and the slash typeahead (Up/Down already drive the typeahead when it''s open — history nav only applies when the typeahead is closed).
 
 Implementation: a small history controller + caret-line detection in ClaudeComposer (EditableText); the Up/Down handling lives alongside the existing _onKey/Shortcuts. Acceptance: send a few prompts, Up walks back through them, Down returns through them to the restored draft; multiline prompts navigate line-by-line before crossing into history; widget tests for the bound conditions (first/last line) and draft stash/restore.', 'backlog', 'medium', NULL, NULL, NULL, '2026-05-24 09:42:44', '2026-05-24 09:42:44', NULL, 'c2d0a0a7c96dba20b920a2cc9d20d2e0', 1) ON CONFLICT(id) DO UPDATE SET type=excluded.type, parent_id=excluded.parent_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at > tickets.updated_at OR (excluded.updated_at = tickets.updated_at AND excluded.hash > tickets.hash);
+INSERT INTO tickets (id, type, parent_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('T-161', 'bug', 'T-132', 'Typed input reaches no live Claude after respawn — pane renders transcript only', 'Observed via make run (2026-05-24). After using /clear and /resume (which appear to work), regular typed messages produce no response and never appear in the conversation stream.
+
+Diagnosis (live process inspection): the clide app (PID 77023) had ZERO child processes; ''tmux -L clide list-sessions'' reported ''no server running''. clide spawns pane processes (tmux client / claude) via posix_spawn as its own children, so no children + no -L clide server = NO live Claude backing the pane. The two stray ''claude'' procs were the user''s other sessions (an agent + a game-coding session), not clide''s. The conversation still renders because TranscriptReader tails the transcript FILE — so /clear and /resume only re-point the reader at a different file; there is no live session behind them.
+
+Leading hypothesis: T-156''s _respawnWithSession (/clear, /resume) kills the tmux session (killing the last session also kills the -L clide server) and the subsequent _spawn does not leave a durable session — but clide may still have _usingTmux=true and routes input via tmux.sendMessage to a now-dead session, where set-buffer/paste-buffer/send-keys silently no-op (tmuxRunner ignores non-zero exit). Net: keystrokes vanish.
+
+To localise: does a BRAND-NEW Claude tab (fresh spawn, no respawn) accept input and respond? If yes, the respawn path is the culprit; if no, the spawn path itself regressed. Also check the make-run console for pane.spawn errors / ''session exited''.
+
+Acceptance: after /clear and /resume, a live tmux session (or no-tmux PTY) exists and typed input reaches Claude and streams a response; clide''s _usingTmux/_paneId/_sessionName stay consistent with the actual spawned process; regression test or a documented manual verification. Relates to T-156, T-147 (self-heal), D-41.', 'done', 'high', NULL, NULL, NULL, '2026-05-24 09:24:02', '2026-05-24 09:45:07', NULL, 'e7e053905caff3775e6aeb5eab4c0039', 1) ON CONFLICT(id) DO UPDATE SET type=excluded.type, parent_id=excluded.parent_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at > tickets.updated_at OR (excluded.updated_at = tickets.updated_at AND excluded.hash > tickets.hash);