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>

geutebruck_app/lib/data/models/action_template.dart

@@ -0,0 +1,174 @@
+import 'package:equatable/equatable.dart';
+
+/// Model representing an action template from the API
+/// Used for dynamic form generation when selecting action types
+class ActionTemplate extends Equatable {
+  final String actionName;
+  final List<String> parameters;
+  final String description;
+  final String category;
+  final bool requiredCaption;
+  final bool supportsDelay;
+  final Map<String, String>? parameterTypes;
+
+  const ActionTemplate({
+    required this.actionName,
+    required this.parameters,
+    required this.description,
+    required this.category,
+    this.requiredCaption = true,
+    this.supportsDelay = true,
+    this.parameterTypes,
+  });
+
+  factory ActionTemplate.fromJson(Map<String, dynamic> json) {
+    return ActionTemplate(
+      actionName: json['action_name'] as String,
+      parameters: (json['parameters'] as List<dynamic>)
+          .map((e) => e.toString())
+          .toList(),
+      description: json['description'] as String,
+      category: json['category'] as String,
+      requiredCaption: json['required_caption'] as bool? ?? true,
+      supportsDelay: json['supports_delay'] as bool? ?? true,
+      parameterTypes: json['parameter_types'] != null
+          ? Map<String, String>.from(json['parameter_types'] as Map)
+          : null,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'action_name': actionName,
+      'parameters': parameters,
+      'description': description,
+      'category': category,
+      'required_caption': requiredCaption,
+      'supports_delay': supportsDelay,
+      if (parameterTypes != null) 'parameter_types': parameterTypes,
+    };
+  }
+
+  @override
+  List<Object?> get props => [
+        actionName,
+        parameters,
+        description,
+        category,
+        requiredCaption,
+        supportsDelay,
+        parameterTypes,
+      ];
+}
+
+/// Model representing a server (G-Core or GeViScope)
+class ServerInfo extends Equatable {
+  final String id;
+  final String alias;
+  final bool enabled;
+
+  const ServerInfo({
+    required this.id,
+    required this.alias,
+    required this.enabled,
+  });
+
+  factory ServerInfo.fromJson(Map<String, dynamic> json) {
+    return ServerInfo(
+      id: json['id'].toString(),
+      alias: json['alias'] as String,
+      enabled: json['enabled'] as bool,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'alias': alias,
+      'enabled': enabled,
+    };
+  }
+
+  @override
+  List<Object?> get props => [id, alias, enabled];
+}
+
+/// Model for servers information
+class ServersInfo extends Equatable {
+  final List<ServerInfo> gcoreServers;
+  final List<ServerInfo> gscServers;
+
+  const ServersInfo({
+    required this.gcoreServers,
+    required this.gscServers,
+  });
+
+  factory ServersInfo.fromJson(Map<String, dynamic> json) {
+    return ServersInfo(
+      gcoreServers: (json['gcore_servers'] as List<dynamic>?)
+              ?.map((e) => ServerInfo.fromJson(e as Map<String, dynamic>))
+              .toList() ??
+          [],
+      gscServers: (json['gsc_servers'] as List<dynamic>?)
+              ?.map((e) => ServerInfo.fromJson(e as Map<String, dynamic>))
+              .toList() ??
+          [],
+    );
+  }
+
+  @override
+  List<Object?> get props => [gcoreServers, gscServers];
+}
+
+/// Model for action categories response
+class ActionCategoriesResponse extends Equatable {
+  final Map<String, List<String>> categories;
+  final int totalCategories;
+  final int totalActions;
+  final ServersInfo servers;
+  final List<String> gscSpecificCategories;
+
+  const ActionCategoriesResponse({
+    required this.categories,
+    required this.totalCategories,
+    required this.totalActions,
+    required this.servers,
+    this.gscSpecificCategories = const [],
+  });
+
+  factory ActionCategoriesResponse.fromJson(Map<String, dynamic> json) {
+    final categoriesMap = json['categories'] as Map<String, dynamic>;
+    final categories = categoriesMap.map(
+      (key, value) => MapEntry(
+        key,
+        (value as List<dynamic>).map((e) => e.toString()).toList(),
+      ),
+    );
+
+    return ActionCategoriesResponse(
+      categories: categories,
+      totalCategories: json['total_categories'] as int,
+      totalActions: json['total_actions'] as int,
+      servers: ServersInfo.fromJson(json['servers'] as Map<String, dynamic>? ?? {}),
+      gscSpecificCategories: (json['gsc_specific_categories'] as List<dynamic>?)
+              ?.map((e) => e.toString())
+              .toList() ??
+          [],
+    );
+  }
+
+  /// Get all action names sorted by category
+  List<String> getActionsForCategory(String category) {
+    return categories[category] ?? [];
+  }
+
+  /// Get list of all category names sorted
+  List<String> get categoryNames {
+    final names = categories.keys.toList();
+    names.sort();
+    return names;
+  }
+
+  @override
+  List<Object?> get props => [categories, totalCategories, totalActions, servers, gscSpecificCategories];
+}