docs: triage and document resolution for 5 unclear/deferred issues

Comprehensive triage of issues #59, #72, #66, #3, and #5:

- #66: Close as by-design (documented by Agent 09)
- #59: Request clarification (insufficient details)
- #72: Request clarification (unclear intent)
- #3: Relabel as v2.0 enhancement (deferred per Agent 10 decision)
- #5: Relabel as v2.0 enhancement (deferred per Agent 10 decision)

All decisions documented with rationale, draft GitHub comments,
and next steps. Based on Agent 10's PR #43 vs PR #62 decision
(chose PR #62, deferred browser builds to v2.0).

Related: #59, #72, #66, #3, #5

Author: claude