feat(browser-farm): Add Docker browser support for remote crawling

Implement initial MVP for Docker-based browser management in Crawl4ai, enabling
remote browser execution in containerized environments.

Key Changes:
- Add browser_farm module with Docker support components:
  * BrowserFarmService: Manages browser endpoints
  * DockerBrowser: Handles Docker browser communication
  * Basic health check implementation
  * Dockerfile with optimized Chrome/Playwright setup:
    - Based on python:3.10-slim for minimal size
    - Includes all required system dependencies
    - Auto-installs crawl4ai and sets up Playwright
    - Configures Chrome with remote debugging
    - Uses socat for port forwarding (9223)

- Update core components:
  * Rename use_managed_browser to use_remote_browser for clarity
  * Modify BrowserManager to support Docker mode
  * Add Docker configuration in BrowserConfig
  * Update context handling for remote browsers

- Add example:
  * hello_world_docker.py demonstrating Docker browser usage

Technical Details:
- Docker container exposes port 9223 (mapped to host:9333)
- Uses CDP (Chrome DevTools Protocol) for remote connection
- Maintains compatibility with existing managed browser features
- Simplified endpoint management for MVP phase
- Optimized Docker setup:
  * Minimal dependencies installation
  * Proper Chrome flags for containerized environment
  * Headless mode with GPU disabled
  * Security considerations (no-sandbox mode)

Testing:
- Extensive Docker configuration testing and optimization
- Verified with hello_world_docker.py example
- Confirmed remote browser connection and crawling functionality
- Tested basic health checks

This is the first step towards a scalable browser farm solution, setting up
the foundation for future enhancements like resource monitoring, multiple
browser instances, and container lifecycle management.

docs/md_v2/advanced/identity_based_crawling.md

@@ -24,7 +24,7 @@ Crawl4AI empowers you to navigate and interact with the web using your authentic
        headless=False,  # Set to False for initial setup to view browser actions
        verbose=True,
        user_agent_mode="random",
-       use_managed_browser=True,  # Enables persistent browser sessions
+       use_remote_browser=True,  # Enables persistent browser sessions
        browser_type="chromium",
        user_data_dir="/path/to/user_profile_data"  # Path to save session data
    )
@@ -61,7 +61,7 @@ async def main():
     browser_config = BrowserConfig(
         headless=True,  # Automate subsequent runs
         verbose=True,
-        use_managed_browser=True,
+        use_remote_browser=True,
         user_data_dir="/path/to/user_profile_data"
     )
 

docs/md_v2/advanced/managed_browser.md

@@ -63,7 +63,7 @@ async with AsyncWebCrawler(config=config) as crawler:
 ```
 
 ### Managed Browser
-The `ManagedBrowser` class offers a high-level abstraction for managing browser instances, emphasizing resource management, debugging capabilities, and anti-bot measures.
+The `RemoteConnector` class offers a high-level abstraction for managing browser instances, emphasizing resource management, debugging capabilities, and anti-bot measures.
 
 #### How It Works
 - **Browser Process Management**:
@@ -82,7 +82,7 @@ The `ManagedBrowser` class offers a high-level abstraction for managing browser
 - **Scalability**:
   - Handles multiple browser instances concurrently, scaling dynamically based on workload.
 
-#### Example: Using `ManagedBrowser`
+#### Example: Using `RemoteConnector`
 ```python
 from crawl4ai import AsyncWebCrawler, BrowserConfig
 

docs/md_v2/api/parameters.md

@@ -10,7 +10,7 @@
 | async_crawler_strategy.py | headers | `kwargs.get("headers", {})` | AsyncPlaywrightCrawlerStrategy | Custom HTTP headers for requests |
 | async_crawler_strategy.py | verbose | `kwargs.get("verbose", False)` | AsyncPlaywrightCrawlerStrategy | Enable detailed logging output |
 | async_crawler_strategy.py | sleep_on_close | `kwargs.get("sleep_on_close", False)` | AsyncPlaywrightCrawlerStrategy | Add delay before closing browser |
-| async_crawler_strategy.py | use_managed_browser | `kwargs.get("use_managed_browser", False)` | AsyncPlaywrightCrawlerStrategy | Use managed browser instance |
+| async_crawler_strategy.py | use_remote_browser | `kwargs.get("use_remote_browser", False)` | AsyncPlaywrightCrawlerStrategy | Use managed browser instance |
 | async_crawler_strategy.py | user_data_dir | `kwargs.get("user_data_dir", None)` | AsyncPlaywrightCrawlerStrategy | Custom directory for browser profile data |
 | async_crawler_strategy.py | session_id | `kwargs.get("session_id")` | AsyncPlaywrightCrawlerStrategy | Unique identifier for browser session |
 | async_crawler_strategy.py | override_navigator | `kwargs.get("override_navigator", False)` | AsyncPlaywrightCrawlerStrategy | Override browser navigator properties |

docs/md_v2/basic/docker-deploymeny.md

@@ -489,7 +489,7 @@ request = {
         
         # Session Management
         "user_data_dir": "./browser-data",   # Browser profile location
-        "use_managed_browser": True,         # Use persistent browser
+        "use_remote_browser": True,         # Use persistent browser
     }
 }
 ```