feat: add agent export/import CLI commands

[chubes4]

Summary

• wp datamachine agents export <slug> — Serializes an agent's full identity (SOUL.md, MEMORY.md, config, pipelines, flows, memory files) into a portable bundle. Supports --format=zip (default), json, and dir output formats with --output=<path> targeting.
• wp datamachine agents import <path> — Recreates an agent from a bundle with automatic ID remapping, slug collision detection, --slug=<new-slug> rename, --owner=<user> assignment, and --dry-run validation. Flows are imported paused/manual to prevent immediate execution.
• New AgentBundler class in inc/Core/Agents/ handles all serialization/deserialization logic — CLI methods stay thin.

Context

Enables Chris to export mattic-agent-kit from his personal laptop and import it on his Automattic machine. The bundle format is versioned (v1) for forward compatibility.

What's excluded by design

• Access grants (security-sensitive)
• Daily memory files (runtime state)
• Chat history (not portable)
• Agent tokens (security-sensitive)

Testing

All three export formats (zip, json, dir) and all three import sources tested end-to-end on the live site:

• Export → Import round-trip with agent files, pipelines, and flows
• Slug collision detection
• Dry-run validation with abilities manifest checking
• Pipeline step ID remapping in flow configs

Closes #1022

[homeboy-ci]

Homeboy Results — data-machine

Homeboy

Failure Digest

Lint Failure Digest

• No structured lint details available.
• Full lint log: https://github.com/Extra-Chill/data-machine/actions/runs/24088960567

Test Failure Digest

• Failed tests: 0
• No structured test failure details available.
• Full test log: https://github.com/Extra-Chill/data-machine/actions/runs/24088960567

Audit Failure Digest

• Drift increased: no
• No structured audit findings available.
• Full audit log: https://github.com/Extra-Chill/data-machine/actions/runs/24088960567

Autofixability classification

• Overall: auto_fixable
• Autofix enabled: yes
• Autofix attempted this run: no
• Auto-fixable failed commands:
  • lint
• Failed commands with available automated fixes:
  • lint

Machine-readable artifacts

• {command}.json — structured output per command (from homeboy --output)

⚡ Scope: changed files only

✅ audit (changed files only)

• Alignment score: 0.763
• Outliers in current run: 52
• Drift increased: no
• Severity counts: info: 10, unknown: 52, warning: 2
• Top actionable findings:
  1. inc/Cli/Commands/AgentsCommand.php — god_file — File has 1170 lines (threshold: 1000)
  2. inc/Cli/Commands/AgentsCommand.php — unused_parameter — Unused parameter 'args' in function 'list_agents' (no callers found)
  3. inc/Cli/Commands/AgentsCommand.php — missing_test_method — Method 'access' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
  4. inc/Cli/Commands/AgentsCommand.php — missing_test_method — Method 'config' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
  5. inc/Cli/Commands/AgentsCommand.php — missing_test_method — Method 'create' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
  6. inc/Cli/Commands/AgentsCommand.php — missing_test_method — Method 'delete' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
  7. inc/Cli/Commands/AgentsCommand.php — missing_test_method — Method 'export' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
  8. inc/Cli/Commands/AgentsCommand.php — missing_test_method — Method 'import_agent' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
  9. inc/Cli/Commands/AgentsCommand.php — missing_test_method — Method 'list_agents' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
  10. inc/Cli/Commands/AgentsCommand.php — missing_test_method — Method 'rename' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'

Audit findings (10 shown)

1. **inc/Cli/Commands/AgentsCommand.php** — god_file — File has 1170 lines (threshold: 1000)
2. **inc/Cli/Commands/AgentsCommand.php** — unused_parameter — Unused parameter 'args' in function 'list_agents' (no callers found)
3. **inc/Cli/Commands/AgentsCommand.php** — missing_test_method — Method 'access' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
4. **inc/Cli/Commands/AgentsCommand.php** — missing_test_method — Method 'config' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
5. **inc/Cli/Commands/AgentsCommand.php** — missing_test_method — Method 'create' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
6. **inc/Cli/Commands/AgentsCommand.php** — missing_test_method — Method 'delete' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
7. **inc/Cli/Commands/AgentsCommand.php** — missing_test_method — Method 'export' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
8. **inc/Cli/Commands/AgentsCommand.php** — missing_test_method — Method 'import_agent' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
9. **inc/Cli/Commands/AgentsCommand.php** — missing_test_method — Method 'list_agents' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'
10. **inc/Cli/Commands/AgentsCommand.php** — missing_test_method — Method 'rename' has no corresponding test in 'tests/Unit/Cli/Commands/AgentsCommandTest.php'

❌ lint (changed files only)

✅ test (changed files only)

• Failed tests: 0

Tooling versions

• Homeboy CLI: homeboy 0.88.6+338ab303
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: unknown
• Action: Extra-Chill/homeboy-action@v2

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Homeboy Action v1