Use Cmd/Ctrl+Enter to send prompts and update docs

docs/INDEX.md

@@ -162,6 +162,8 @@ A: See [build-roadmap.md](build-roadmap.md) for phases
 | tasks/README.md             | ✅ Complete | 2024-10-22   |
 | Task 001-005                | ✅ Complete | 2024-10-22   |
 
+**Project phase:** Post-MVP (Phases 1-3 complete; Phase 4 work underway).
+
 ---
 
 ## Contributing to Documentation

docs/SUMMARY.md

@@ -1,5 +1,9 @@
 # OpenCode Client - Project Summary
 
+## Current Status
+
+We have completed the MVP milestones (Phases 1-3) and are now operating in post-MVP mode. Future work prioritizes multi-instance support, advanced input polish, and system integrations outlined in later phases.
+
 ## What We've Created
 
 A comprehensive specification and task breakdown for building the OpenCode Client desktop application.

docs/build-roadmap.md

@@ -4,6 +4,8 @@
 
 This document outlines the phased approach to building the OpenCode Client desktop application. Each phase builds incrementally on the previous, with clear deliverables and milestones.
 
+**Status:** MVP (Phases 1-3) is complete. Focus now shifts to post-MVP phases starting with multi-instance support and advanced input refinements.
+
 ## MVP Scope (Phases 1-3)
 
 The minimum viable product includes:

docs/user-interface.md

@@ -266,8 +266,8 @@ Click to expand: Show diff inline
 
 **Keyboard Shortcuts:**
 
-- Enter: Send message
-- Shift+Enter: New line
+- Enter: New line
+- Cmd+Enter (macOS) / Ctrl+Enter (Windows/Linux): Send message
 - Cmd/Ctrl+K: Clear input
 - Cmd/Ctrl+V: Paste (handles files)
 - Cmd/Ctrl+L: Focus input