chore(tasks): MS23 Phase 0 complete — all 6 P0 tasks done

docs/TASKS.md

@@ -126,7 +126,7 @@ Target version: `v0.0.23`
 | MS23-P0-003 | done        | p0-foundation | Orchestrator API: GET /agents/:id/messages + SSE stream endpoint                                 | #693  | orchestrator | feat/ms23-p0-stream    | MS23-P0-001                                     | MS23-P0-006                                                 | codex | 2026-03-06 | 2026-03-07      | 20K      | —    |                                               |
 | MS23-P0-004 | done        | p0-foundation | Orchestrator API: POST /agents/:id/inject + pause/resume endpoints                               | #693  | orchestrator | feat/ms23-p0-controls  | MS23-P0-001                                     | MS23-P0-006                                                 | codex | 2026-03-07 | 2026-03-07 | 15K      | —    |                                               |
 | MS23-P0-005 | done        | p0-foundation | Subagent tree: parentAgentId on spawn registration + GET /agents/tree                            | #693  | orchestrator | feat/ms23-p0-tree      | MS23-P0-001                                     | MS23-P0-006                                                 | —     | —          | —            | 15K      | —    |                                               |
-| MS23-P0-006 | in-progress | p0-foundation | Unit + integration tests for all P0 orchestrator endpoints                                       | #693  | orchestrator | test/ms23-p0           | MS23-P0-002,MS23-P0-003,MS23-P0-004,MS23-P0-005 | MS23-P1-001                                                 | codex | 2026-03-07 | —      | 20K      | —    | Phase 0 gate: SSE stream verified via curl    |
+| MS23-P0-006 | done        | p0-foundation | Unit + integration tests for all P0 orchestrator endpoints                                       | #693  | orchestrator | test/ms23-p0           | MS23-P0-002,MS23-P0-003,MS23-P0-004,MS23-P0-005 | MS23-P1-001                                                 | codex | 2026-03-07 | 2026-03-07 | 20K      | —    | Phase 0 gate: SSE stream verified via curl    |
 
 ### Phase 1 — Provider Interface (Plugin Architecture)