Reference Documents

Background and design artefacts. The implementation work is driven by the phase plans in the parent docs/ directory.

File	Purpose
`SPEC-ios-app.md`	Final spec v3 for the iOS app and sidecar. The source of truth for what is being built.
`EXTENSION-API-AUDIT.md`	Audit of pi's ExtensionAPI — what's exposed, what's not, workarounds. Drives the realisability of S-07, S-08 and similar.
`SPEC-ios-app-review-v1.md`	Archived review thread of spec v1 → v2 with inline discussions. Historical, do not edit.
`ARCHITECTURE.md`	Original architecture document for the existing `pi-remote-control` extension (HTML/WebSocket client).