feat: 添加轻量模式支持并更新文档

添加轻量模式支持，包括不同的依赖文件、Vercel配置和功能降级处理。更新README以说明不同安装选项和平台限制。

Author: hillerliao

.vercelignore

@@ -0,0 +1,5 @@
+uv.lock
+pyproject.toml
+Pipfile
+Pipfile.lock
+.python-version

Dockerfile

@@ -8,7 +8,7 @@ COPY . .
 
 # Install Python dependencies
 # Official image has system dependencies, we just need python deps
-RUN pip install --no-cache-dir -r requirements.txt && \
+RUN pip install --no-cache-dir -r requirements-full.txt && \
     playwright install chromium
 
 # Set production environment variables

README.md

@@ -30,6 +30,8 @@ uv sync
 uv run flask run
 ```
 
+> **Note**: For full features (Playwright, PDF processing, etc.), use `pip install -r requirements-full.txt` instead of the default `requirements.txt`.
+
 ---
 
 ## 🛠 Advanced Features
@@ -64,10 +66,8 @@ docker run -d \
 
 ### Cloud Platforms
 - **Vercel**: [![Deploy with Vercel](https://vercel.app/button)](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Fhillerliao%2Frsshub-python)
-  > **Note**: To resolve the 250MB limit on Vercel:
-  > 1. Go to your Vercel Project **Settings** > **Build & Development**.
-  > 2. Toggle **Override** for **Install Command**.
-  > 3. Enter: `pip install -r requirements-lite.txt`.
+  > **Note**: The project is pre-configured for Vercel Lite Mode via `vercel.json`. It uses `requirements-lite.txt` to avoid the 250MB size limit.
+  > Advanced features like Playwright and PDF parsing are disabled in Lite Mode.
 
 - **Zeabur**: Supports both Git integration and pre-built Docker images.
 

requirements-full.txt

@@ -0,0 +1,28 @@
+arrow==1.2.2
+beautifulsoup4==4.11.1
+Bootstrap_Flask==1.8.0
+click==8.0.3
+cssselect==1.2.0
+feedparser==6.0.8
+Flask==2.0.2
+gunicorn
+Werkzeug==2.0.3
+Flask_Analytics==0.6.0
+Flask_Caching==2.0.2
+Flask_DebugToolbar==0.11.0
+Flask_Moment==1.0.2
+icecream==2.1.1
+Jinja2==3.0.3
+playwright
+ptpython==3.0.31
+pyjsparser==2.7.1
+pyppeteer
+python-dotenv==1.2.1
+pytz==2025.2
+Requests==2.32.5
+setuptools==80.9.0
+undetected_chromedriver==3.5.5
+trafilatura
+EbookLib>=0.17.1
+mobi>=0.3.3
+pymupdf>=1.25.0

requirements.txt

@@ -13,16 +13,9 @@ Flask_DebugToolbar==0.11.0
 Flask_Moment==1.0.2
 icecream==2.1.1
 Jinja2==3.0.3
-playwright
 ptpython==3.0.31
 pyjsparser==2.7.1
-pyppeteer
 python-dotenv==1.2.1
 pytz==2025.2
 Requests==2.32.5
 setuptools==80.9.0
-undetected_chromedriver==3.5.5
-trafilatura
-EbookLib>=0.17.1
-mobi>=0.3.3
-pymupdf>=1.25.0

rsshub/blueprints/proxy.py

@@ -1,6 +1,11 @@
 import requests
 from flask import Blueprint, request, Response
-import trafilatura
+
+try:
+    import trafilatura
+    HAS_TRAFILATURA = True
+except ImportError:
+    HAS_TRAFILATURA = False
 
 bp = Blueprint('proxy', __name__, url_prefix='/proxy')
 
@@ -10,6 +15,9 @@
 
 @bp.route('/readability')
 def readability():
+    if not HAS_TRAFILATURA:
+        return "Error: Trafilatura not available in Lite Mode. This feature requires the full installation.", 503
+    
     url = request.args.get('url')
     proxy_url = request.args.get('proxy')