docs: add safe Lavish surface repair playbook

[ruby-dlee]

Replacement lineage

This pull request replaces #45, whose GitHub pull-request object remained pinned to deleted-branch head 8e6030c4a7bb738aa66d8fe4426619cad7d36fea after the branch was recreated.
The refreshed remote head descends from that exact commit, so every commit and file from the original pull request is preserved.
It also merges current main append-only and updates the renamed lavish-decisions routing reference.

Intent

Add a firstmate-loaded internal lavish-repair skill that diagnoses and repairs wedged Lavish decision surfaces in cheapest-first order while preserving the explicit-PID process-safety guard.

What changed

• Preserve the full original docs: add safe Lavish surface repair playbook #45 history and its lavish-repair skill and regression coverage.
• Merge current main without rewriting the gate-tracked history.
• Resolve the skill-routing overlap in favor of current main's lavish-decisions name while retaining the repair skill.

Verification

• git merge-base --is-ancestor 8e6030c4a7bb738aa66d8fe4426619cad7d36fea 6fab15b4993d46da4b37c3e9f8ea7136263093ef
• bash tests/lavish-repair.test.sh

Pipeline

Updates from git push no-mistakes

The preserved branch history was raised through that pipeline on #45.
This replacement pull request was created manually only because GitHub would not relink #45 to its safely recreated head branch; it does not bypass or rewrite the existing gate-tracked commits.

[ruby-dlee]

bugbot run

[ruby-dlee]

bugbot run

[ruby-dlee]

bugbot run verbose=true