feat: implement Redis-backed Socket.io adapter and user presence service for cross-instance communication

package-lock.json

@@ -33,6 +33,7 @@
         "@prisma/adapter-pg": "^7.2.0",
         "@prisma/client": "^7.2.0",
         "@sendgrid/mail": "^8.1.6",
+        "@socket.io/redis-adapter": "^8.3.0",
         "argon2": "^0.44.0",
         "axios": "^1.13.2",
         "bull": "^4.16.5",
@@ -6360,6 +6361,49 @@
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       "license": "MIT"
     },
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+      "license": "MIT",
+      "dependencies": {
+        "debug": "~4.3.1",
+        "notepack.io": "~3.0.1",
+        "uid2": "1.0.0"
+      },
+      "engines": {
+        "node": ">=10.0.0"
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+      "peerDependencies": {
+        "socket.io-adapter": "^2.5.4"
+      }
+    },
+    "node_modules/@socket.io/redis-adapter/node_modules/debug": {
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+      "license": "MIT",
+      "dependencies": {
+        "ms": "^2.1.3"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
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+    },
+    "node_modules/@socket.io/redis-adapter/node_modules/uid2": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/uid2/-/uid2-1.0.0.tgz",
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 4.0.0"
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     "node_modules/@standard-schema/spec": {
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@@ -15052,6 +15096,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/notepack.io": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/notepack.io/-/notepack.io-3.0.1.tgz",
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+      "license": "MIT"
+    },
     "node_modules/npm-run-path": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-4.0.1.tgz",