refactor: enhance error handling structure in main.py

Improved the organization and clarity of error handling in main.py by consolidating exception management and refining error messages, particularly in asynchronous functions.

.github/workflows/docker-build.yml

@@ -0,0 +1,39 @@
+name: Docker Build & Compose Validation
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  docker_build:
+    name: Build Docker Image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU (for multi-platform builds)
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker image
+        run: docker build --file Dockerfile --tag telegram-mcp-server:ci .
+
+  docker_compose:
+    name: Build & Validate Docker Compose
+    runs-on: ubuntu-latest
+    needs: docker_build
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Validate Compose file syntax
+        run: docker compose config
+
+      - name: Build Compose services
+        run: docker compose build