Module doctor 

oxicode doctor — home-layout diagnostics.

Prints the active unified home resolution in one glance:

• the Oxi home (oxi_home()) and the owned oxicode subtree (oxicode_home()),
• legacy ~/.oxicode presence and whether a home-layout migration is pending,
• the well-known oxicode-owned paths derived from the canonical home.

Read-only: doctor never mutates state.

Functions

handle_doctor

Handle oxicode doctor. Prints home-layout diagnostics; exit code 0.