fix(mcp): refactor all mcp servers to use multi-session sse transport

packages/gitea-mcp/Dockerfile

@@ -15,5 +15,5 @@ COPY --from=builder /app/package.json ./
 COPY --from=builder /app/node_modules ./node_modules
 COPY --from=builder /app/dist ./dist
 
-# Use node to run the compiled index.js
-ENTRYPOINT ["node", "dist/index.js"]
+# Use node to run the compiled start.js
+ENTRYPOINT ["node", "dist/start.js"]

packages/gitea-mcp/src/index.ts

@@ -1,6 +1,7 @@
 import { Server } from "@modelcontextprotocol/sdk/server/index.js";
 import { SSEServerTransport } from "@modelcontextprotocol/sdk/server/sse.js";
 import express from "express";
+import crypto from "crypto";
 import {
   CallToolRequestSchema,
   ListToolsRequestSchema,
@@ -1265,17 +1266,35 @@ async function run() {
     console.error("Gitea MCP server is running on stdio");
   } else {
     const app = express();
-    let transport: SSEServerTransport | null = null;
+    const transports = new Map<string, SSEServerTransport>();
+
+    // Middleware to log all requests for debugging
+    app.use((req, _res, next) => {
+      console.error(`${req.method} ${req.url}`);
+      next();
+    });
 
     app.get("/sse", async (req, res) => {
-      console.error("New SSE connection established");
-      transport = new SSEServerTransport("/message", res);
+      const sessionId = crypto.randomUUID();
+      console.error(`New SSE connection: ${sessionId}`);
+      const transport = new SSEServerTransport(`/message/${sessionId}`, res);
+      transports.set(sessionId, transport);
+
+      req.on("close", () => {
+        console.error(`SSE connection closed: ${sessionId}`);
+        transports.delete(sessionId);
+      });
+
       await server.connect(transport);
     });
 
-    app.post("/message", async (req, res) => {
+    app.post("/message/:sessionId", async (req, res) => {
+      const { sessionId } = req.params;
+      const transport = transports.get(sessionId);
+
       if (!transport) {
-        res.status(400).send("No active SSE connection");
+        console.error(`No transport found for session: ${sessionId}`);
+        res.status(400).send("No active SSE connection for this session");
         return;
       }
       await transport.handlePostMessage(req, res);