Complete private Monero miner control stack.

Implement Windows agent with RandomX mining and WebSocket fleet reporting, wire dashboard settings into the builder with saved exe paths, and add project README.

.gitignore

@@ -0,0 +1,31 @@
+# Binaries
+/bin/
+*.exe
+!run.bat
+
+# Data (runtime)
+/data/*.db
+/data/*.db-shm
+/data/*.db-wal
+/data/builds/
+/data/logs/
+/data/config.json
+
+# Go
+/server/miner-server.exe
+
+# Frontend
+/server/web/node_modules/
+/server/web/dist/
+/server/webroot/
+
+# IDE / OS
+.idea/
+.vscode/
+*.swp
+Thumbs.db
+Desktop.ini
+
+# Temp
+-p/
+*.log