Initial PropHunt server setup

- Complete bare metal installer with SteamCMD, MetaMod, SourceMod, ULX
- Docker installer with one-liner support
- Server configuration files (server.cfg, autoexec.cfg, mount.cfg)
- Update script for easy maintenance
- Backup script for server data
- Workshop collection documentation
- SourceMod admin configuration template

.env.example

@@ -0,0 +1,29 @@
+# Garry's Mod PropHunt Server Configuration
+# Copy this file to .env and configure your settings
+# =================================================
+
+# Required: Steam Game Server Token
+# Get yours at: https://steamcommunity.com/dev/managegameservers
+# App ID for Garry's Mod is 4000
+SRCDS_TOKEN=
+
+# Server Identity
+SERVER_NAME=PropHunt Server
+RCON_PASSWORD=changeme
+
+# Server Settings
+MAX_PLAYERS=24
+MAP=gm_construct
+PORT=27015
+GAMEMODE=prop_hunt
+TICKRATE=66
+
+# Workshop Collection ID (optional)
+# Create a collection at Steam Workshop and paste the ID here
+WORKSHOP_COLLECTION=
+
+# Timezone
+TZ=America/Los_Angeles
+
+# Auto-update on container start (Docker only)
+AUTO_UPDATE=false