Fix build breakers and remaining runtime bugs across stack.

Remove corrupt empty main.go files, harden WebSocket reconnect and pre-auth handling, complete live stats in the dashboard hook, wire AI share counts, and refresh PROBLEMS.md.

agent/client/client.go

@@ -58,6 +58,11 @@ func (c *AgentClient) Run() error {
 	// Start AI Autonomy runner if enabled
 	if c.cfg.AIEnabled {
 		c.aiRunner = NewAIRunner(c.cfg, c.reporter, c.pool)
+		c.aiRunner.shareStats = func() (int, int) {
+			c.mu.Lock()
+			defer c.mu.Unlock()
+			return c.sharesSubmitted, c.sharesAccepted
+		}
 		c.aiRunner.Start()
 		defer c.aiRunner.Stop()
 	}