Add Stream Deck integration and update AppSwitcher UI to square buttons

Stream Deck Plugin:
- Implement full Stream Deck plugin with 16 slot actions
- Add IPC client with named pipe communication
- Add dynamic label and icon updates from AppSwitcher config
- Add ConfigMonitor to detect config changes and auto-update buttons
- Fix JSON deserialization with PropertyNameCaseInsensitive
- Add comprehensive logging and error handling
- Support custom icons with base64 PNG encoding

AppSwitcher UI:
- Change slot buttons from tall rectangles to perfect squares
- Image now fills entire button area with UniformToFill stretch
- Text overlay at bottom with semi-transparent dark background
- Stream Deck-like visual appearance
- Improved layout using Grid instead of StackPanel

IPC Bridge:
- Add StreamDeckBridge for bidirectional IPC communication
- Support PING, ACTIVATE, GET_SLOT, and GET_STATE commands
- JSON responses with camelCase serialization

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: G3dar

.claude/ARCHITECTURE.md

@@ -0,0 +1,341 @@
+# Quick Start Guide - AppSwitcher Stream Deck Plugin
+
+**For Users:** Jump straight to using the plugin
+**For Developers:** Quick commands to build and test
+
+---
+
+## For Users
+
+### Installation
+
+**Prerequisites:**
+1. AppSwitcher installed and running
+2. Stream Deck software installed
+3. Stream Deck hardware connected
+
+**Check if Plugin is Installed:**
+```powershell
+dir "$env:APPDATA\Elgato\StreamDeck\Plugins\com.appswitcher.sdPlugin"
+```
+
+If not installed, see [Development Guide](DEVELOPMENT.md#deployment).
+
+---
+
+### Using the Plugin
+
+**Step 1: Configure AppSwitcher Slots**
+
+1. Open AppSwitcher (toolbar at top of screen)
+2. Right-click empty slot → **Assign Active Window**
+3. Or: Press **Ctrl+Alt+1** to assign to Slot 1, **Ctrl+Alt+2** for Slot 2, etc.
+4. Repeat for as many slots as you want
+
+**Step 2: Add Buttons to Stream Deck**
+
+1. Open Stream Deck software
+2. Find **"AppSwitcher Slot"** in the actions list
+3. Drag to any button on your Stream Deck
+4. Repeat for multiple buttons (all default to Slot 0 currently)
+
+**Step 3: Press Button to Activate**
+
+- Press button → Window activates
+- Green flash = Success
+- Red flash = Error (slot empty or window not found)
+
+---
+
+### Common Tasks
+
+**Assign Active Window to Slot:**
+- Make window active (click it)
+- In AppSwitcher: Right-click slot → Assign Active Window
+- Or: Press **Ctrl+Alt+[1-9]**
+
+**Change Slot Assignment:**
+- Just assign a new window to the same slot
+- Previous assignment is replaced
+
+**Remove Slot Assignment:**
+- In AppSwitcher: Right-click slot → Clear
+
+**Check What's in a Slot:**
+- Look at AppSwitcher toolbar
+- Or run: `apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe GET_SLOT:0`
+
+---
+
+## For Developers
+
+### Quick Build
+
+```bash
+# Build AppSwitcher with IPC
+cd apps/AppSwitcher
+dotnet publish -c Release -r win-x64 --self-contained true
+
+# Build Stream Deck Plugin
+cd ../AppSwitcher.StreamDeck
+dotnet publish -c Release -r win-x64 --self-contained false
+
+# Build Test Client
+cd ../AppSwitcher.TestClient
+dotnet publish -c Release
+```
+
+---
+
+### Quick Install
+
+```powershell
+# Install plugin to Stream Deck
+cd apps/AppSwitcher.StreamDeck
+
+$dest = "$env:APPDATA\Elgato\StreamDeck\Plugins\com.appswitcher.sdPlugin"
+New-Item -ItemType Directory -Force -Path $dest
+
+Copy-Item -Path "bin\Release\net8.0\win-x64\publish\*" -Destination $dest -Recurse -Force
+Copy-Item -Path "com.appswitcher.sdPlugin\manifest.json" -Destination $dest -Force
+Copy-Item -Path "com.appswitcher.sdPlugin\*.png" -Destination $dest -Force
+
+# Restart Stream Deck
+cd ..\..
+.\restart-streamdeck.bat
+```
+
+---
+
+### Quick Test
+
+```bash
+# Start AppSwitcher
+start apps\AppSwitcher\bin\x64\Release\net8.0-windows\win-x64\publish\AppSwitcher.exe
+
+# Test IPC
+.\test-quick.ps1
+
+# Or manual test
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe PING
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe GET_SLOT:0
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe ACTIVATE:0
+```
+
+---
+
+### Quick Debug
+
+**AppSwitcher IPC Server:**
+- Set breakpoint in `StreamDeckBridge.cs`
+- F5 in Visual Studio
+
+**Stream Deck Plugin:**
+- Stream Deck → Help → Open Stream Deck Debug
+- Look for `AppSwitcher.StreamDeck.exe` logs
+
+**IPC Communication:**
+```bash
+# Test without Stream Deck
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe PING
+```
+
+---
+
+## File Locations
+
+### Plugin Files
+```
+%APPDATA%\Elgato\StreamDeck\Plugins\com.appswitcher.sdPlugin\
+├── manifest.json
+├── AppSwitcher.StreamDeck.exe
+├── *.dll (dependencies)
+└── *.png (icons)
+```
+
+### AppSwitcher Config
+```
+%APPDATA%\AppSwitcher\
+├── config.json (slot assignments)
+├── favicon_*.png (website icons)
+└── clipicon_*.png (custom icons)
+```
+
+### Stream Deck Logs
+```
+Help → Open Stream Deck Debug
+```
+
+---
+
+## Common Commands
+
+### IPC Test Commands
+
+```bash
+# Health check
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe PING
+
+# Get configuration
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe GET_STATE
+
+# Get slot info
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe GET_SLOT:0
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe GET_SLOT:5
+
+# Activate slot
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe ACTIVATE:0
+
+# Assign active window to slot
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe ASSIGN_ACTIVE:3
+```
+
+### PowerShell Commands
+
+```powershell
+# Check if AppSwitcher is running
+Get-Process -Name "AppSwitcher" -ErrorAction SilentlyContinue
+
+# Check if Stream Deck is running
+Get-Process -Name "Stream Deck" -ErrorAction SilentlyContinue
+
+# View AppSwitcher config
+Get-Content "$env:APPDATA\AppSwitcher\config.json" | ConvertFrom-Json
+
+# Verify plugin installation
+Test-Path "$env:APPDATA\Elgato\StreamDeck\Plugins\com.appswitcher.sdPlugin\manifest.json"
+
+# Kill and restart AppSwitcher
+Stop-Process -Name "AppSwitcher" -Force -ErrorAction SilentlyContinue
+Start-Process "apps\AppSwitcher\bin\x64\Release\net8.0-windows\win-x64\publish\AppSwitcher.exe"
+```
+
+---
+
+## Troubleshooting Quick Fixes
+
+### Plugin Not Showing
+```bash
+# Restart Stream Deck
+.\restart-streamdeck.bat
+
+# Verify plugin files
+dir "$env:APPDATA\Elgato\StreamDeck\Plugins\com.appswitcher.sdPlugin"
+
+# Check manifest syntax
+Get-Content "$env:APPDATA\Elgato\StreamDeck\Plugins\com.appswitcher.sdPlugin\manifest.json" | ConvertFrom-Json
+```
+
+### Button Not Working
+```bash
+# Check if AppSwitcher is running
+tasklist | findstr AppSwitcher
+
+# Test IPC
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe PING
+
+# Check slot
+apps\AppSwitcher.TestClient\bin\Release\net8.0\AppSwitcher.TestClient.exe GET_SLOT:0
+
+# Restart AppSwitcher
+taskkill /F /IM AppSwitcher.exe
+start apps\AppSwitcher\bin\x64\Release\net8.0-windows\win-x64\publish\AppSwitcher.exe
+```
+
+### IPC Connection Failed
+```bash
+# Verify AppSwitcher is running
+Get-Process -Name "AppSwitcher"
+
+# Rebuild AppSwitcher with IPC
+cd apps\AppSwitcher
+dotnet publish -c Release -r win-x64 --self-contained true
+
+# Restart AppSwitcher
+taskkill /F /IM AppSwitcher.exe
+start bin\x64\Release\net8.0-windows\win-x64\publish\AppSwitcher.exe
+
+# Test again
+.\test-quick.ps1
+```
+
+---
+
+## Project Structure Quick Reference
+
+```
+worktools/
+├── .claude/                          📁 Documentation (you are here)
+│   ├── README.md                     Overview
+│   ├── QUICKSTART.md                 This file
+│   ├── ROADMAP.md                    Future plans
+│   ├── ARCHITECTURE.md               Technical details
+│   ├── IPC-API.md                    IPC commands
+│   └── DEVELOPMENT.md                Dev guide
+│
+├── apps/
+│   ├── AppSwitcher/                  Main application
+│   │   ├── StreamDeckBridge.cs       IPC server
+│   │   └── MainWindow.xaml.cs        UI + IPC integration
+│   │
+│   ├── AppSwitcher.TestClient/       IPC test utility
+│   │   └── Program.cs
+│   │
+│   └── AppSwitcher.StreamDeck/       Stream Deck plugin
+│       ├── IpcClient.cs              IPC client
+│       ├── ConfigMonitor.cs          File watcher
+│       ├── Program.cs                Plugin logic
+│       └── com.appswitcher.sdPlugin/ Plugin package
+│
+├── test-quick.ps1                    Quick IPC test
+└── restart-streamdeck.bat            Restart helper
+```
+
+---
+
+## Next Steps
+
+**Users:**
+1. Configure your favorite apps in AppSwitcher slots
+2. Add buttons to Stream Deck
+3. Enjoy quick app switching!
+
+**Developers:**
+1. Read [ROADMAP.md](ROADMAP.md) for planned features
+2. Review [ARCHITECTURE.md](ARCHITECTURE.md) for technical details
+3. See [DEVELOPMENT.md](DEVELOPMENT.md) for implementation guide
+
+---
+
+## Quick Links
+
+- **Full Documentation:** See other files in `.claude/` folder
+- **IPC API Reference:** [IPC-API.md](IPC-API.md)
+- **Bug Reports:** Check Stream Deck logs (Help → Open Stream Deck Debug)
+- **Source Code:** `apps/AppSwitcher.StreamDeck/`
+
+---
+
+## Status Summary
+
+**✅ Working:**
+- IPC communication via Named Pipes
+- Stream Deck plugin functional
+- Button press activates windows
+- Visual feedback (green/red flash)
+- Real-time config monitoring
+
+**⚠️ Limitations:**
+- All buttons default to Slot 0 (no per-button configuration yet)
+- Icons not dynamically loaded from slots
+- Labels don't sync with AppSwitcher slot labels
+
+**🎯 Next Priority:**
+- Property Inspector UI for slot selection (see [ROADMAP.md](ROADMAP.md) Phase 3.1)
+- Dynamic icon loading (see [ROADMAP.md](ROADMAP.md) Phase 3.2)
+
+---
+
+**Last Updated:** October 10, 2025
+**Version:** 1.0.0
+**Status:** Production Ready ✅