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.

agent/job/job.go

@@ -0,0 +1,12 @@
+package job
+
+type Job struct {
+	ID            string `json:"job_id"`
+	Height        int64  `json:"height"`
+	BlockTemplate string `json:"blocktemplate"`
+	Difficulty    int64  `json:"difficulty"`
+	SeedHash      string `json:"seed_hash"`
+	Target        string `json:"target"`
+	Blob          string `json:"blob"`
+	Algo          string `json:"algo"`
+}