feat(agent): add durable Claude print mode

[codeaholicguy]

Summary

• add durable Claude print agents registered without a live terminal or provider process
• run first sends through stdin with an assigned session UUID, then resume that exact Claude session on later sends
• expose durable ready/running/degraded state in agent list/detail while preserving interactive defaults and excluded integrations
• add crash-safe local state/locking, bounded stream validation, security hardening, lifecycle docs, and offline fake-provider coverage

Validation

• repository-wide lint, build, and tests (all 6 projects)
• agent-manager: 24 files / 497 tests; 89.66% statements, 77.98% branches, 96.13% functions, 92.88% lines
• CLI: 78 files / 921 tests
• base and feature lifecycle lint
• fake-Claude first-send/resume end-to-end fixture; no real or billable prompt
• npm audit at critical threshold: 0 critical advisories

Risks

• Claude inherits existing user/project permissions, hooks, MCP servers, and tool side effects; AI DevKit adds no bypass flags or retries
• interrupted provider actions can have an unknown outcome and intentionally leave the logical agent degraded
• existing repository dependency audit contains high/moderate advisories, but this feature adds no dependencies