scaffold: Backend core — Cargo.toml, main.rs, config, models, panel adapter

Axum server entry point, AppConfig, AppState, ApiError, all model
structs (auth, license, server, wipe), and the PanelAdapter trait
that abstracts AMP/Pterodactyl/companion connections.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/src/models/server.rs

@@ -0,0 +1,99 @@
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+
+/// Server connection details
+#[derive(Debug, Clone, sqlx::FromRow, Serialize)]
+pub struct ServerConnection {
+    pub id: Uuid,
+    pub license_id: Uuid,
+    pub connection_type: String,
+    pub panel_api_endpoint: Option<String>,
+    #[serde(skip_serializing)]
+    pub panel_api_key_encrypted: Option<String>,
+    pub panel_server_identifier: Option<String>,
+    #[serde(skip_serializing)]
+    pub companion_agent_token: Option<String>,
+    pub companion_last_seen: Option<DateTime<Utc>>,
+    pub plugin_last_seen: Option<DateTime<Utc>>,
+    pub server_ip: Option<String>,
+    pub server_port: Option<i32>,
+    pub game_port: Option<i32>,
+    pub connection_status: String,
+    pub created_at: DateTime<Utc>,
+    pub updated_at: DateTime<Utc>,
+}
+
+/// Server configuration
+#[derive(Debug, Clone, sqlx::FromRow, Serialize)]
+pub struct ServerConfig {
+    pub id: Uuid,
+    pub license_id: Uuid,
+    pub server_name: String,
+    pub max_players: Option<i32>,
+    pub world_size: Option<i32>,
+    pub current_seed: Option<i32>,
+    pub current_map_id: Option<Uuid>,
+    pub server_description: Option<String>,
+    pub server_url: Option<String>,
+    pub server_header_image: Option<String>,
+    pub tags: Option<Vec<String>>,
+    pub auto_restart_enabled: bool,
+    pub auto_restart_cron: Option<String>,
+    pub auto_restart_timezone: Option<String>,
+    pub crash_recovery_enabled: bool,
+    pub crash_recovery_max_attempts: i32,
+    pub crash_recovery_cooldown_minutes: i32,
+    pub force_wipe_eligible: bool,
+    pub auto_update_on_force_wipe: bool,
+    pub config_overrides: Option<serde_json::Value>,
+    pub created_at: DateTime<Utc>,
+    pub updated_at: DateTime<Utc>,
+}
+
+/// Real-time server stats from plugin
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ServerStats {
+    pub license_id: Uuid,
+    pub player_count: i32,
+    pub max_players: i32,
+    pub fps: f64,
+    pub entity_count: i32,
+    pub uptime_seconds: i32,
+    pub memory_usage_mb: i32,
+    pub recorded_at: DateTime<Utc>,
+}
+
+/// Plugin registry entry
+#[derive(Debug, Clone, sqlx::FromRow, Serialize)]
+pub struct PluginEntry {
+    pub id: Uuid,
+    pub license_id: Uuid,
+    pub plugin_name: String,
+    pub plugin_version: Option<String>,
+    pub source: String,
+    pub umod_slug: Option<String>,
+    pub is_installed: bool,
+    pub is_loaded: bool,
+    pub config_json: Option<serde_json::Value>,
+    pub data_path: Option<String>,
+    pub wipe_on_map: bool,
+    pub wipe_on_bp: bool,
+    pub wipe_on_full: bool,
+    pub never_wipe: bool,
+    pub installed_at: DateTime<Utc>,
+    pub updated_at: DateTime<Utc>,
+}
+
+/// Game admin (in-game SteamID-based admin)
+#[derive(Debug, Clone, sqlx::FromRow, Serialize)]
+pub struct GameAdmin {
+    pub id: Uuid,
+    pub license_id: Uuid,
+    pub steam_id: String,
+    pub display_name: String,
+    pub admin_level: String,
+    pub permissions: Option<serde_json::Value>,
+    pub added_by: Uuid,
+    pub created_at: DateTime<Utc>,
+}