fix(kap-server): deliver nested subagent lifecycle events

[ForeverMJ]

Related Issue

Resolve #2992

#2992

Problem

Nested requester-owned terminal lifecycle events were cropped by the main-only agent_filter, leaving snapshot-seeded cards running.

What changed

Introduced one shared session control-plane lifecycle predicate for live filtering, replay, and transcript suppression.

Guardrails:

• Ordinary child content remains filtered.
• No payload/schema/REST/config/docs/Web bundle changes.

Verification:

• RED live/replay failures reproduced before the fix.
• Focused GREEN live/replay checks passed after the fix.
• Broadcaster 83/83 passed.
• Adjacent 110/110 passed.
• kap-server typecheck/build passed.
• Five-lane review pass completed.
• git diff --check passed.
• No changeset/docs updates required by the already-recorded gen-changesets/gen-docs decisions.

Browser limitation:

• Deterministic merge gate passed, but browser QA is not claimed because Chrome is missing at /opt/google/chrome/chrome.

Checklist

• I have read the CONTRIBUTING document.
• I have linked a related issue, or explained the problem above.
• I have added tests that prove my feature works.
• Ran gen-changesets skill, or this PR needs no changeset.
• Ran gen-docs skill, or this PR needs no doc update.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 843f2d7

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve transcript suppression for subagent lifecycle events

When a connection has a non-off transcript grade for the requesting agent, subagent.* events are already projected into transcript.ops because they remain in TRANSCRIPT_PROJECTED_EVENT_TYPES; this early return now also delivers the raw session_event, so live fan-out and cursor replay both duplicate each lifecycle transition for transcript clients. Keep the new agent-filter bypass if nested lifecycle events must reach main-only legacy subscribers, but do not bypass suppressedByTranscript when the emitting agent has an enabled grade.

AGENTS.md reference: packages/kap-server/AGENTS.md:L18-L22

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