Clean up root directory for public release

- Remove empty build-multi-arch-fixed.sh file
- Add proper config-example-xmpp.toml with XMPP integration examples
- Include placeholder secrets and comprehensive configuration options
- Remove unnecessary empty files from repository tracking

Repository is now clean and ready for public Git push

config-example-xmpp.toml

@@ -0,0 +1,64 @@
+# HMAC File Server - Example XMPP Configuration
+# This is a sample configuration for XMPP integration with Prosody/Ejabberd
+
+[server]
+listenport = "8080"
+unixsocket = false
+storagepath = "/var/lib/hmac-file-server/uploads"
+metricsenabled = true
+metricsport = "9090"
+deduplicationenabled = true
+minfreebytes = "5GB"
+filettl = "2y"
+filettlenabled = false
+autoadjustworkers = true
+networkevents = false
+pidfilepath = "./hmac-file-server.pid"
+precaching = false
+
+[deduplication]
+enabled = true
+directory = "/var/lib/hmac-file-server/deduplication"
+
+[logging]
+level = "info"
+file = "/var/log/hmac-file-server/hmac-file-server.log"
+max_size = 100
+max_backups = 7
+max_age = 30
+compress = true
+
+[security]
+secret = "your-super-secret-hmac-key-here-minimum-32-characters"
+enablejwt = false
+# jwtkey = "your-jwt-secret-key-here"
+# jwtalgorithm = "HS256"
+# jwtexpiry = "24h"
+
+[uploads]
+maxfilesize = "1GB"
+allowedextensions = [".jpg", ".jpeg", ".png", ".gif", ".pdf", ".txt", ".zip"]
+blockedextensions = [".exe", ".bat", ".sh", ".cmd"]
+
+[downloads]
+ratelimit = true
+maxconcurrentdownloads = 10
+
+[clamav]
+enabled = false
+host = "localhost"
+port = 3310
+timeout = "30s"
+maxfilesize = "100MB"
+
+[redis]
+enabled = false
+host = "localhost"
+port = 6379
+password = ""
+database = 0
+
+[workers]
+maxworkers = 10
+initialworkers = 2
+autoscaling = true