Fix MCP bridge script

Restore bridge.mjs build artifacts and update build script to include bridge.ts. Switch bridge to use StreamableHTTPClientTransport for better auth support.

apps/mcp/package.json

@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "dev": "tsx watch src/index.ts",
-    "build": "tsup src/index.ts --format esm --clean",
+    "build": "tsup src/index.ts src/bridge.ts --format esm --clean",
     "start": "node dist/index.mjs",
     "typecheck": "tsc --noEmit"
   },
@@ -12,14 +12,15 @@
     "@hono/mcp": "^0.1.1",
     "@modelcontextprotocol/sdk": "^1.0.1",
     "@supabase/supabase-js": "^2.45.0",
+    "dotenv": "^16.4.5",
+    "eventsource": "^4.1.0",
     "hono": "^4.6.0",
-    "zod": "^3.23.0",
-    "dotenv": "^16.4.5"
+    "zod": "^3.23.0"
   },
   "devDependencies": {
     "@types/node": "^22.0.0",
-    "tsx": "^4.19.0",
     "tsup": "^8.2.4",
+    "tsx": "^4.19.0",
     "typescript": "^5.5.0"
   }
 }