feat: config export/import + MCP notification monitor

[ourines]

Summary

• Config export/import: codes config export / codes config import for sharing config between machines. Sensitive values (TOKEN, KEY, SECRET, PASSWORD) auto-redacted on export, skipped on import.
• MCP notification monitor: Replace client-dependent MonitorCmd bash scripts with server-side singleton goroutine. Notifications are piggybacked on agent tool responses and team_watch is recommended for real-time monitoring.

Changes

Config export/import

• internal/commands/cobra.go — Register ConfigExportCmd and ConfigImportCmd
• internal/commands/config_sync.go — RunConfigExport / RunConfigImport implementation

MCP notification monitor

• internal/mcp/monitor.go — Singleton goroutine polling ~/.codes/notifications/, pending queue (cap 100), best-effort MCP logging push
• internal/mcp/agent_tools.go — Remove MonitorCmd, add MonitorActive + Notifications piggyback to 7 handlers, update tool descriptions with polling + team_watch recommendations
• internal/mcp/monitor_e2e_test.go — 5 Go e2e tests + full MCP protocol e2e test (27 assertions)

Test plan

• go build ./... passes
• go vet ./... clean
• go test ./... all pass (including 5 new MCP e2e tests)
• Full MCP protocol e2e test (27/27 assertions pass): team create → agent add → task create → notification piggyback → drain idempotency → team_watch fallback

Summary by CodeRabbit

• New Features

  • Added system diagnostics command for health checks including CLI, configuration, API connectivity, and disk space.
  • Added webhook notification management with add, remove, list, and test operations.
  • Added configuration import/export functionality with sensitive data redaction.
  • Added project linking capabilities in the UI.
  • Added workflow approval system with auto-approval and retry support.
  • Added workflow run history persistence.
  • Added agent daemon supervision with auto-restart and health monitoring.
  • Added terminal session support for FreeBSD and OpenBSD platforms.

• Improvements

  • Configuration file permissions now enforced to 0600 for enhanced security.
  • API connection tests now display latency measurements.

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

This PR introduces multiple interconnected features: a system diagnostics command, webhook notifications for task events, daemon supervision with auto-restart and health monitoring, workflow approval prompts with persistence, config import/export with sensitive value redaction, TUI project linking, FreeBSD/OpenBSD terminal support, and MCP notification monitoring with response piggybacking.

Changes

Cohort / File(s)	Summary
Doctor Diagnostics CLAUDE.md, docs/doctor.md, cmd/codes/main.go, internal/commands/cobra.go, internal/commands/doctor.go	New doctor subcommand performs six sequential system checks: CLI installation, config loading, API connectivity, file permissions, agent daemon status, and disk space; exits with code 1 on failure.
Webhook Notifications internal/agent/daemon.go, internal/config/config.go, internal/commands/notify_cobra.go, internal/commands/notify_commands.go	Adds webhook notification system: new WebhookConfig type with CRUD operations (add, remove, list, test); daemon integrates sendWebhookNotifications to dispatch task completion/failure events to configured webhooks.
Configuration Management internal/commands/config_sync.go, internal/config/config_test.go, internal/commands/commands.go	Introduces config import/export with redaction of sensitive values; adds config permission validation (0600); enhances API test output with latency measurements.
Daemon Supervision & State internal/agent/supervisor.go, internal/agent/types.go	New Supervisor subsystem manages daemon lifecycle with auto-restart, exponential backoff, crash tracking, and health checks; extends AgentState with restart count, last crash timestamp, and supervision flag.
Workflow Approval & Persistence internal/workflow/approval.go, internal/workflow/persistence.go, internal/workflow/runner.go, internal/workflow/types.go, internal/commands/workflow_commands.go	Adds approval workflow interface with CLI and auto-approval implementations; introduces workflow run persistence and lifecycle tracking (ID, timestamps, status); refactors RunWorkflow to accept options struct with retry support.
MCP Notification Monitoring internal/mcp/monitor.go, internal/mcp/agent_tools.go, internal/mcp/monitor_e2e_test.go, internal/mcp/workflow_tools.go	Background monitor scans for notification files, buffers pending notifications with cap, and piggybacks them onto MCP responses; updates tool outputs to include monitor status and notifications; adds comprehensive E2E tests.
TUI Project Linking internal/tui/linkform.go, internal/tui/model.go, internal/tui/projects.go	New link management form for projects with add/unlink flows; integrates into TUI state machine; updates keyboard bindings to expose link functionality.
Terminal Session Support internal/session/terminal_freebsd.go, internal/session/terminal_openbsd.go, internal/session/terminal_other.go	Adds FreeBSD and OpenBSD-specific terminal launchers with emulator registry; refactors build constraints to gate terminal support on non-BSD platforms.

Sequence Diagram(s)

sequenceDiagram
    participant Daemon as Agent Daemon
    participant Task as Task Completion
    participant Notifier as Webhook Notifier
    participant Webhook as Webhook Server
    
    Daemon->>Task: Task status change (completed/failed)
    Daemon->>Daemon: sendWebhookNotifications(status, task)
    Daemon->>Notifier: Determine event type & filter webhooks
    Notifier->>Notifier: Build notification payload
    Notifier->>Webhook: POST notification to configured webhook
    Webhook-->>Notifier: Response
    Notifier->>Daemon: Log result (error non-blocking)

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sequenceDiagram
    participant FS as File System (.codes/notifications)
    participant Monitor as Background Monitor
    participant Buffer as Pending Queue
    participant Response as MCP Response Handler
    
    FS->>Monitor: Notification files written
    Monitor->>Monitor: Poll directory periodically
    Monitor->>FS: Read & parse JSON notification files
    Monitor->>Buffer: Enqueue pending notifications
    Monitor->>FS: Clean up processed files
    Response->>Buffer: drainPendingNotifications()
    Buffer-->>Response: Return & clear buffered notifications
    Response->>Response: Piggyback onto response payload

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Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Possibly related PRs

• PR #2: Modifies CLI command registration in cobra.go and cmd/codes/main.go; related through shared command wiring pattern for new subcommands.
• PR #23: Introduces MCP server and session manager modifications; related through overlapping changes to internal/mcp/ and internal/session/ subsystems.

Poem

🐰 bounces excitedly
A doctor checks the system, webhooks send their call,
Daemons find supervisors keeping watch o'er all,
Workflows seek approval while projects link as friends,
Notifications piggyback... this PR ascends! 🚀

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/config-export

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