feat(openclaw): ship same-terminal cleaner entry

[lingsanbuer]

Summary

Complete the OpenClaw Context Cleaner same-terminal interactive entry and final release packaging.

/lightrsi clean now provides an exact command bound to the current session:

lightrsi openclaw clean --require-tty --session <session-id>

Users can navigate with Up/Down, toggle with Space, submit with Enter, and cancel with q. No recent-session guessing is used.

What changed

• Add a current-session interactive Cleaner entry to the native OpenClaw command.
• Bundle the lightrsi CLI in the OpenClaw release archive.
• Install the CLI automatically with the OpenClaw plugin.
• Update CLI help, OpenClaw documentation, and release-package tests.
• Preserve the existing scheduled → next Host request → applied workflow.

Validation

• CLI typecheck and 95/95 tests passed.
• OpenClaw adapter typecheck and 162/162 tests passed.
• Release-package tests passed.
• Final package build and installation verified.
• Keyboard selection and cancellation verified.
• Scheduled plan survived a Gateway restart.
• Cleaning executed on the next ordinary Host request.
• Completed plans were not executed again.
• git diff --check passed.

Scope

This PR only changes the OpenClaw Cleaner terminal entry, release packaging, help documentation, and related tests. It does not change Cleaner safety policy or canonical rewrite semantics.

3:05