doctor is blind to a co-installed enabled sibling spacedock plugin

[clkao]

Prevent stable launches from loading an enabled sibling-channel first-officer that rejects the bundled binary.

What changed

• Inventory Claude and Codex plugin records before runtime launch.
• Repair enabled sibling conflicts through the existing one-shot installation.
• Refuse unresolved conflicts under --no-install and report them through doctor.
• Exercise installed stable packages through ordinary live front doors.

Evidence

• 4/4 acceptance criteria passed across deterministic, full, race, and documentation verification.
• 1/1 authenticated Codex live probe passed; Claude package selection passed before expired OAuth.

---

x0p