v4.1.0 - Context continuity

Highlights\n\n- Preserves recoverable WORK state after bounded Tracked or Governed slices and before meaningful context boundaries, while Direct work that finishes in one context still creates no WORK.\n- Separates structural knowledge checks from a semantic Fresh-Agent Resume Probe with real run provenance.\n- Makes durable experience writeback idempotent by searching canonical destinations, recording no-op results, and coordinating one writer through owned_paths.\n- Updates English and Chinese onboarding and pins new installations to v4.1.0.\n\n## Product boundary\n\n- The core remains plain Markdown and Git; companion helpers are optional.\n- This release adds no autonomous loop, scheduler, runtime telemetry requirement, hidden memory, or automatic cross-project feedback.\n- Existing initialized projects are not rewritten automatically. Adopt selected v4.1.0 rules manually when useful.\n\n## Validation\n\n- Full distribution lifecycle validation passes.\n- Official Agent Skill validation passes.\n- A real Fresh-Agent resume probe recovered route, acceptance state, commits, validation, unresolved risk, next action, and Skill routing from five repository files without a helper.