fix(orchestration): scope Mission Control Shipped to the director's lifetime

[zaridan]

The bug

A brand-new Orcastrator's Shipped section in Mission Control showed shipped PRs from past sessions. Verified against a real repo: a fresh director in resonantiq-gtm listed PRs #16/#15/#17/#18 from a 2026-06-20 session.

Root cause

.orcastrate/log.jsonl is committed to the repo (intentional — it's the orcastrate skill's cross-session decision log). So every new director worktree, branched from main, inherits the full accumulated log from all prior sessions. Mission Control derived Shipped by reading directorPath/.orcastrate/log.jsonl → parseOrchestrateLogOutcomes → selectShippedWork, which filtered only by tag === 'shipped' with no scoping to the current director. Every historical shipped outcome rendered as if this director shipped it.

The fix — scope to the director's own lifetime

The log's outcome records carry a ts (ISO timestamp); the director worktree carries a createdAt (epoch ms).

• Thread an optional sinceMs into parseOrchestrateLogOutcomes(content, sinceMs?). When set, skip outcome records whose ts parses before sinceMs.
• Edge handling: an outcome with a missing or unparseable ts can't be attributed to this director, so it's excluded when scoping (err toward not showing foreign work).
• OrchestratorMissionControl passes the director worktree's createdAt.
• sinceMs stays optional: legacy callers and worktrees discovered on disk (no createdAt) keep prior behavior. Plan records remain unscoped — they only supply descriptions.

Result: a brand-new director → no outcomes after its creation → empty Shipped; inherited entries are filtered out; a director's own shipped outcomes (logged during its lifetime) still appear.

Out of scope (unchanged)

• The orcastrate skill, the log format, and the fact that the log is committed.
• The Spawned work section (live workers by lineage) — already director-scoped via worktree lineage; confirmed not regressed.

Tests

Added lifetime-scoping tests in orcastrate-log-shipped-work.test.ts that fail against the pre-fix code (which returns all outcomes):

• old + new outcomes → scoped parse returns only the new one's shipped items;
• brand-new director (sinceMs = now) over an old-only log → empty;
• missing/unparseable ts → excluded when scoping;
• sinceMs omitted → legacy behavior preserved.

Full vitest (20495 passed), typecheck, electron-vite build, and oxlint all green.

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