fix: replay compaction records on resume

[kermanx]

Related Issue

No linked issue.

Problem

Resumed TUI sessions did not show historical compaction activity because compaction state was not projected as a replay record. This made completed or cancelled compactions disappear from the transcript after resume.

What changed

• Added compaction replay records for restored full-compaction lifecycle events.
• Render replayed completed and cancelled compactions with the existing TUI compaction block.
• Added resume replay coverage for completed and cancelled compactions in agent-core and TUI tests.
• Added a patch changeset for the CLI-visible resume display fix.

Verification

• pnpm vitest run packages/agent-core/test/agent/resume.test.ts
• pnpm vitest run apps/kimi-code/test/tui/message-replay.test.ts
• pnpm --filter @moonshot-ai/agent-core run typecheck
• pnpm --filter @moonshot-ai/kimi-code run typecheck
• pnpm exec oxlint --type-aware packages/agent-core/src/rpc/resumed.ts packages/agent-core/src/agent/compaction/full.ts packages/agent-core/src/agent/context/index.ts packages/agent-core/src/agent/replay/index.ts apps/kimi-code/src/tui/types.ts apps/kimi-code/src/tui/kimi-tui.ts apps/kimi-code/src/tui/controllers/session-replay.ts packages/agent-core/test/agent/resume.test.ts apps/kimi-code/test/tui/message-replay.test.ts
• Read-only diff audit found no internal identifier issues.

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]

🦋 Changeset detected

Latest commit: 191722d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@moonshot-ai/agent-core	Patch
@moonshot-ai/kimi-code	Patch

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[pkg-pr-new]

pnpm dlx https://pkg.pr.new/@moonshot-ai/kimi-code@191722d

npx https://pkg.pr.new/@moonshot-ai/kimi-code@191722d

commit: 191722d

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