feat: Geutebruck GeViScope/GeViSoft Action Mapping System - MVP

This MVP release provides a complete full-stack solution for managing action mappings
in Geutebruck's GeViScope and GeViSoft video surveillance systems.

## Features

### Flutter Web Application (Port 8081)
- Modern, responsive UI for managing action mappings
- Action picker dialog with full parameter configuration
- Support for both GSC (GeViScope) and G-Core server actions
- Consistent UI for input and output actions with edit/delete capabilities
- Real-time action mapping creation, editing, and deletion
- Server categorization (GSC: prefix for GeViScope, G-Core: prefix for G-Core servers)

### FastAPI REST Backend (Port 8000)
- RESTful API for action mapping CRUD operations
- Action template service with comprehensive action catalog (247 actions)
- Server management (G-Core and GeViScope servers)
- Configuration tree reading and writing
- JWT authentication with role-based access control
- PostgreSQL database integration

### C# SDK Bridge (gRPC, Port 50051)
- Native integration with GeViSoft SDK (GeViProcAPINET_4_0.dll)
- Action mapping creation with correct binary format
- Support for GSC and G-Core action types
- Proper Camera parameter inclusion in action strings (fixes CrossSwitch bug)
- Action ID lookup table with server-specific action IDs
- Configuration reading/writing via SetupClient

## Bug Fixes
- **CrossSwitch Bug**: GSC and G-Core actions now correctly display camera/PTZ head parameters in GeViSet
- Action strings now include Camera parameter: `@ PanLeft (Comment: "", Camera: 101028)`
- Proper filter flags and VideoInput=0 for action mappings
- Correct action ID assignment (4198 for GSC, 9294 for G-Core PanLeft)

## Technical Stack
- **Frontend**: Flutter Web, Dart, Dio HTTP client
- **Backend**: Python FastAPI, PostgreSQL, Redis
- **SDK Bridge**: C# .NET 8.0, gRPC, GeViSoft SDK
- **Authentication**: JWT tokens
- **Configuration**: GeViSoft .set files (binary format)

## Credentials
- GeViSoft/GeViScope: username=sysadmin, password=masterkey
- Default admin: username=admin, password=admin123

## Deployment
All services run on localhost:
- Flutter Web: http://localhost:8081
- FastAPI: http://localhost:8000
- SDK Bridge gRPC: localhost:50051
- GeViServer: localhost (default port)

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Test-GeViSetStructure.ps1

@@ -0,0 +1,77 @@
+# Simple test script to understand GeViSet structure
+
+$filePath = "C:\Users\Administrator\Desktop\GeViSoft.set"
+$data = [System.IO.File]::ReadAllBytes($filePath)
+
+Write-Host "Analyzing first 200 bytes of structure..." -ForegroundColor Cyan
+Write-Host ""
+
+# Manual parsing of first few elements
+$pos = 0
+
+function Read-LengthPrefixedString {
+    param([ref]$position, [byte[]]$data, [int]$lengthBytes)
+
+    $length = 0
+    if ($lengthBytes -eq 1) {
+        $length = $data[$position.Value]
+        $position.Value++
+    } else {
+        $length = [BitConverter]::ToUInt16($data, $position.Value)
+        $position.Value += 2
+    }
+
+    $text = [System.Text.Encoding]::UTF8.GetString($data, $position.Value, $length)
+    $position.Value += $length
+
+    return @{Length = $length; Text = $text}
+}
+
+# Try parsing with different length assumptions
+Write-Host "=== Attempt 1: First byte as type, next byte as 1-byte length ===" -ForegroundColor Yellow
+$pos = 0
+$type = $data[$pos++]
+Write-Host "Type marker: 0x$($type.ToString('X2'))"
+
+$length = $data[$pos++]
+Write-Host "Length: $length"
+
+$text = [System.Text.Encoding]::UTF8.GetString($data, $pos, $length)
+$pos += $length
+Write-Host "Text: '$text'"
+Write-Host "Next 20 bytes: $([BitConverter]::ToString($data[$pos..($pos+19)]))"
+Write-Host ""
+
+# Try parsing with 2-byte length
+Write-Host "=== Attempt 2: First byte as type, next 2 bytes as 2-byte LE length ===" -ForegroundColor Yellow
+$pos = 0
+$type = $data[$pos++]
+Write-Host "Type marker: 0x$($type.ToString('X2'))"
+
+$length = [BitConverter]::ToUInt16($data, $pos)
+$pos += 2
+Write-Host "Length: $length"
+
+if ($length -lt 200) {
+    $text = [System.Text.Encoding]::UTF8.GetString($data, $pos, $length)
+    $pos += $length
+    Write-Host "Text: '$text'"
+    Write-Host "Next 20 bytes: $([BitConverter]::ToString($data[$pos..($pos+19)]))"
+} else {
+    Write-Host "Length too large ($length), probably wrong interpretation"
+}
+Write-Host ""
+
+# Look at structure around the user section
+Write-Host "=== Looking for 'SysAdmin' string ===" -ForegroundColor Yellow
+$text = [System.Text.Encoding]::GetEncoding("ISO-8859-1").GetString($data)
+$sysAdminPos = $text.IndexOf("SysAdmin")
+if ($sysAdminPos -ge 0) {
+    Write-Host "Found 'SysAdmin' at offset: 0x$($sysAdminPos.ToString('X8'))"
+    Write-Host "Context (60 bytes before):"
+    $start = [Math]::Max(0, $sysAdminPos - 60)
+    Write-Host ([BitConverter]::ToString($data[$start..($sysAdminPos + 20)]))
+    Write-Host ""
+    Write-Host "As text:"
+    Write-Host ([System.Text.Encoding]::UTF8.GetString($data[$start..($sysAdminPos + 40)]) -replace '[^\x20-\x7E]', '.')
+}