Mark ADR as Done

Mark ADR $ARGUMENTS as completed and archive it.

Process

1. Read INDEX.md at docs/ai/adr/INDEX.md to confirm:

   • Status legend: Implemented, Proposed, Superseded (never "Done")
   • File organization: Implemented/Superseded ADRs go to docs/ai/adr/archive/

2. Find the ADR file: Look in docs/ai/adr/ (top-level) for the matching ADR number.

3. Determine new status:

   • Default: Implemented
   • If the user says "superseded by NNN": Superseded

4. Update the ADR file:

   • Change ## Status: Proposed → ## Status: Implemented (or Superseded)

5. Move to archive:

   • mv docs/ai/adr/{file}.md docs/ai/adr/archive/

6. Update INDEX.md:

   • Change the Status column to Implemented (or Superseded)
   • Update the Notes column if needed to reflect what was built

Rules

• Status values are ONLY: Implemented, Proposed, Superseded — never "Done", "Complete", etc.
• Implemented and Superseded ADRs MUST be moved to archive/
• Proposed ADRs stay in the top-level docs/ai/adr/ directory