fix: close stream adaptive gaps and switch notify to stario v0.1.1

- make stream fast path honor adaptive soft payload limits end-to-end
  - split oversized fast-stream payloads into sequential frames before batching
  - use adaptive soft cap when encoding stream batch payloads
  - move timeout-like error detection into production code for adaptive tx
  - tune notify FrameReader read size explicitly to avoid throughput regression
  - drop local stario replace and depend on released b612.me/stario v0.1.1

stream_control.go

@@ -7,17 +7,19 @@ import (
 )
 
 type StreamOpenRequest struct {
-	StreamID     string
-	DataID       uint64
-	Channel      StreamChannel
-	Metadata     StreamMetadata
-	ReadTimeout  time.Duration
-	WriteTimeout time.Duration
+	StreamID        string
+	DataID          uint64
+	FastPathVersion uint8
+	Channel         StreamChannel
+	Metadata        StreamMetadata
+	ReadTimeout     time.Duration
+	WriteTimeout    time.Duration
 }
 
 type StreamOpenResponse struct {
 	StreamID            string
 	DataID              uint64
+	FastPathVersion     uint8
 	Accepted            bool
 	TransportGeneration uint64
 	Metadata            StreamMetadata
@@ -92,6 +94,8 @@ func (c *ClientCommon) handleInboundStreamOpen(msg *Message) {
 		return
 	}
 	scope := clientFileScope()
+	req.FastPathVersion = negotiateStreamFastPathVersion(req.FastPathVersion)
+	resp.FastPathVersion = req.FastPathVersion
 	if req.DataID == 0 {
 		req.DataID = runtime.nextDataID()
 		resp.DataID = req.DataID
@@ -178,6 +182,8 @@ func (s *ServerCommon) handleInboundStreamOpen(msg *Message) {
 	}
 	transport := messageTransportConnSnapshot(msg)
 	scope := serverFileScope(logical)
+	req.FastPathVersion = negotiateStreamFastPathVersion(req.FastPathVersion)
+	resp.FastPathVersion = req.FastPathVersion
 	if req.DataID == 0 {
 		req.DataID = runtime.nextDataID()
 		resp.DataID = req.DataID