Summary

nemoclaw uninstall on Linux Docker-driver hosts leaves ~/.local/state/nemoclaw/ on disk. This directory is owned by NemoClaw (documented as NEMOCLAW_OPENSHELL_GATEWAY_STATE_DIR in docs/reference/commands.md:1150) and holds the Docker-driver gateway's pid file, SQLite database, audit log, and vm-driver/ state. Re-onboarding after uninstall picks up the stale state.

Context

This is sub-bug #5c from #3456. The parent issue auto-closed when #3520 merged (which fixed sub-bugs #3, #4). Sub-bugs #1, #2, #5a, #5b were fixed earlier via #3459 and #3483. #5c was confirmed real on current main in #3456 (comment) but #3520 did not include it; filing this as a narrow follow-up so it stays tracked on the v0.0.42 board.

Steps to reproduce

1. Onboard on a Linux Docker-driver host: nemoclaw onboard
2. Verify the gateway state dir exists: ls -la ~/.local/state/nemoclaw/
3. Run nemoclaw uninstall
4. Re-check: ls -la ~/.local/state/nemoclaw/

Expected

Step 4 prints No such file or directory.

Actual

Step 4 lists openshell-docker-gateway/ and friends — uninstall cleans ~/.nemoclaw, ~/.config/nemoclaw, ~/.config/openshell but never ~/.local/state/nemoclaw/. Confirmed by reading src/lib/domain/uninstall/paths.ts:77 (uninstallStatePaths does not list this path).

Acceptance criteria

• ~/.local/state/nemoclaw/ is removed by nemoclaw uninstall on Linux
• Unit test in src/lib/domain/uninstall/paths.test.ts confirms the path is in uninstallStatePaths() return value
• No regression in existing uninstall tests (run-plan.test.ts)