feat(modules): 帮助中心、工单、工作流与多渠道接入

补齐 FAQ、帮助中心、工单、可视化工作流及 Telegram/WhatsApp/Slack 等渠道模块。

backend/app/services/firebase.py

@@ -0,0 +1,63 @@
+"""
+Copyright 2024-2026 ChatterMate
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+"""
+
+from firebase_admin import credentials, initialize_app, get_app
+from app.core.config import settings
+from app.core.logger import get_logger
+import os
+
+logger = get_logger(__name__)
+
+
+def initialize_firebase():
+    """Initialize Firebase Admin SDK"""
+    try:
+        # Check if already initialized
+        try:
+            get_app()
+            logger.info("Firebase already initialized")
+            return
+        except ValueError:
+            logger.info("Initializing Firebase...")
+
+        # Get credentials file path
+        cred_path = settings.FIREBASE_CREDENTIALS
+
+        if not cred_path or not os.path.isfile(cred_path):
+            logger.warning(f"Firebase credentials not found at {cred_path}. Running in development mode.")
+            # Use a default configuration for development
+            cred = credentials.Certificate({
+                "type": "service_account",
+                "project_id": "demo-project",
+                "private_key_id": "demo123456789",
+                "private_key": "-----BEGIN PRIVATE KEY-----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\nAgMBAAECggEABBj/H/JGXuVGoCjR6J0XF+kQTOuTgZBvgapkpPTYwfXQ\n-----END PRIVATE KEY-----\n",
+                "client_email": "firebase-adminsdk-demo@demo-project.iam.gserviceaccount.com",
+                "client_id": "123456789",
+                "auth_uri": "https://accounts.google.com/o/oauth2/auth",
+                "token_uri": "https://oauth2.googleapis.com/token",
+                "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
+                "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/firebase-adminsdk-demo%40demo-project.iam.gserviceaccount.com",
+                "universe_domain": "googleapis.com"
+            })
+        else:
+            logger.info("Loading Firebase credentials from file " + cred_path)
+            cred = credentials.Certificate(cred_path)
+        
+        initialize_app(cred)
+        logger.info("Firebase initialized successfully")
+    except Exception as e:
+        logger.error(f"Error initializing Firebase: {str(e)}")
+        logger.warning("Continuing without Firebase initialization")