TEC-1960: adds unit tests for socket handlers

.github/workflows/unit-tests.yml

@@ -0,0 +1,25 @@
+name: Unit Tests
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: "npm"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run unit tests
+        run: npm test -- --run

.gitignore

@@ -53,3 +53,7 @@ scripts.ts
 
 # .md files
 dev-journal.md
+CLAUDE.md
+
+# docs
+docs/