feat(cloud-agent-next): persist and display worktree change summaries

[eshurakov]

Summary

• Capture and persist worktree-change summaries through the sandbox control protocol.
• Expose authorized summary reads for personal and organization sessions.
• Display changed files and summaries in the Cloud Agent workspace.

Verification

• verified manually via local dev stack

Visual Changes

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (67 files)

• apps/extension/tests/e2e/agents-fixture.ts
• apps/extension/tests/e2e/agents-mode.test.ts
• apps/web/src/components/cloud-agent-next/ChatHeader.tsx
• apps/web/src/components/cloud-agent-next/CloudChatPage.tsx
• apps/web/src/components/cloud-agent-next/WorktreeChanges.tsx
• apps/web/src/components/cloud-agent-next/terminal-tabs.test.ts
• apps/web/src/components/cloud-agent-next/terminal-tabs.ts
• apps/web/src/components/cloud-agent-next/worktree-changes.test.ts
• apps/web/src/components/cloud-agent-next/worktree-changes.ts
• apps/web/src/components/ui/sheet.tsx
• apps/web/src/lib/cloud-agent-next/cloud-agent-client.test.ts
• apps/web/src/lib/cloud-agent-next/cloud-agent-client.ts
• apps/web/src/routers/cloud-agent-next-router.test.ts
• apps/web/src/routers/cloud-agent-next-router.ts
• apps/web/src/routers/cloud-agent-next-schemas.test.ts
• apps/web/src/routers/cloud-agent-next-schemas.ts
• apps/web/src/routers/organizations/organization-cloud-agent-next-router.test.ts
• apps/web/src/routers/organizations/organization-cloud-agent-next-router.ts
• apps/web/tests/e2e/cloud-agent-sandbox-status.spec.ts
• packages/cloud-agent-sdk/src/__fixtures__/helpers.ts
• packages/cloud-agent-sdk/src/cloud-agent-transport.test.ts
• packages/cloud-agent-sdk/src/cloud-agent-transport.ts
• packages/cloud-agent-sdk/src/index.ts
• packages/cloud-agent-sdk/src/normalizer.test.ts
• packages/cloud-agent-sdk/src/normalizer.ts
• packages/cloud-agent-sdk/src/schemas.test.ts
• packages/cloud-agent-sdk/src/schemas.ts
• packages/cloud-agent-sdk/src/session-manager.test.ts
• packages/cloud-agent-sdk/src/session-manager.ts
• packages/cloud-agent-sdk/src/session-phase.test.ts
• packages/cloud-agent-sdk/src/session-transport.test.ts
• packages/worker-utils/package.json
• packages/worker-utils/src/cloud-agent-worktree-changes.test.ts
• packages/worker-utils/src/cloud-agent-worktree-changes.ts
• services/cloud-agent-next/src/persistence/SandboxControl.ts
• services/cloud-agent-next/src/router.ts
• services/cloud-agent-next/src/router/handlers/session-worktree-changes.test.ts
• services/cloud-agent-next/src/router/handlers/session-worktree-changes.ts
• services/cloud-agent-next/src/router/schemas.ts
• services/cloud-agent-next/src/sandbox-control/frames.test.ts
• services/cloud-agent-next/src/sandbox-control/frames.ts
• services/cloud-agent-next/src/sandbox-control/socket.test.ts
• services/cloud-agent-next/src/sandbox-control/socket.ts
• services/cloud-agent-next/src/sandbox-session/SandboxSession.ts
• services/cloud-agent-next/src/sandbox-session/session-message-queue.test.ts
• services/cloud-agent-next/src/sandbox-session/worktree-changes.test.ts
• services/cloud-agent-next/src/sandbox-session/worktree-changes.ts
• services/cloud-agent-next/src/shared/protocol.ts
• services/cloud-agent-next/src/shared/sandbox-control-protocol.ts
• services/cloud-agent-next/src/shared/worktree-changes-wire.test.ts
• services/cloud-agent-next/src/shared/worktree-changes-wire.ts
• services/cloud-agent-next/src/websocket/stream.test.ts
• services/cloud-agent-next/src/websocket/types.ts
• services/cloud-agent-next/test/integration/sandbox-control.test.ts
• services/cloud-agent-next/test/unit/wrapper/utils.test.ts
• services/cloud-agent-next/wrapper/src/control/main.ts
• services/cloud-agent-next/wrapper/src/control/sandbox-control-client.test.ts
• services/cloud-agent-next/wrapper/src/control/sandbox-control-client.ts
• services/cloud-agent-next/wrapper/src/control/sandbox-control-handlers.test.ts
• services/cloud-agent-next/wrapper/src/control/sandbox-control-handlers.ts
• services/cloud-agent-next/wrapper/src/control/session-directories.ts
• services/cloud-agent-next/wrapper/src/control/standalone-build.test.ts
• services/cloud-agent-next/wrapper/src/control/worktree-changes.test.ts
• services/cloud-agent-next/wrapper/src/control/worktree-changes.ts
• services/cloud-agent-next/wrapper/src/control/worktree-mutation-notifications.test.ts
• services/cloud-agent-next/wrapper/src/control/worktree-mutation-notifications.ts
• services/cloud-agent-next/wrapper/src/utils.ts

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_{Review guidance: REVIEW.md from base branch main}