Reduce RPC dial timeout from 2s to 200ms for fast-fail (bd-expt)

- Changed TryConnect default from 2s to 200ms
- Updated fallback timeout in TryConnectWithTimeout
- Complements bd-wgu4 lock probe to eliminate 5s delays
- Fixes GH#243 (5s delay when daemon socket missing)
- Health checks still use longer timeouts via explicit TryConnectWithTimeout calls

internal/rpc/client.go

@@ -29,7 +29,7 @@ type Client struct {
 // TryConnect attempts to connect to the daemon socket
 // Returns nil if no daemon is running or unhealthy
 func TryConnect(socketPath string) (*Client, error) {
-	return TryConnectWithTimeout(socketPath, 2*time.Second)
+	return TryConnectWithTimeout(socketPath, 200*time.Millisecond)
 }
 
 // TryConnectWithTimeout attempts to connect to the daemon socket using the provided dial timeout.
@@ -54,7 +54,7 @@ func TryConnectWithTimeout(socketPath string, dialTimeout time.Duration) (*Clien
 	}
 
 	if dialTimeout <= 0 {
-		dialTimeout = 2 * time.Second
+		dialTimeout = 200 * time.Millisecond
 	}
 
 	conn, err := dialRPC(socketPath, dialTimeout)