feat(browser): add geolocation, locale and timezone support

Add support for controlling browser geolocation, locale and timezone settings:
- New GeolocationConfig class for managing GPS coordinates
- Add locale and timezone_id parameters to CrawlerRunConfig
- Update browser context creation to handle location settings
- Add example script for geolocation usage
- Update documentation with location-based identity features

This enables more precise control over browser identity and location reporting.

docs/examples/use_geo_location.py

@@ -0,0 +1,70 @@
+# use_geo_location.py
+"""
+Example: override locale, timezone, and geolocation using Crawl4ai patterns.
+
+This demo uses `AsyncWebCrawler.arun()` to fetch a page with
+browser context primed for specific locale, timezone, and GPS,
+and saves a screenshot for visual verification.
+"""
+
+import asyncio
+import base64
+from pathlib import Path
+from typing import List
+from crawl4ai import (
+    AsyncWebCrawler,
+    CrawlerRunConfig,
+    BrowserConfig,
+    GeolocationConfig,
+    CrawlResult,
+)
+
+async def demo_geo_override():
+    """Demo: Crawl a geolocation-test page with overrides and screenshot."""
+    print("\n=== Geo-Override Crawl ===")
+
+    # 1) Browser setup: use Playwright-managed contexts
+    browser_cfg = BrowserConfig(
+        headless=False,
+        viewport_width=1280,
+        viewport_height=720,
+        use_managed_browser=False,
+    )
+
+    # 2) Run config: include locale, timezone_id, geolocation, and screenshot
+    run_cfg = CrawlerRunConfig(
+        url="https://browserleaks.com/geo",          # test page that shows your location
+        locale="en-US",                              # Accept-Language & UI locale
+        timezone_id="America/Los_Angeles",           # JS Date()/Intl timezone
+        geolocation=GeolocationConfig(                 # override GPS coords
+            latitude=34.0522,
+            longitude=-118.2437,
+            accuracy=10.0,
+        ),
+        screenshot=True,                               # capture screenshot after load
+        session_id="geo_test",                       # reuse context if rerunning
+        delay_before_return_html=5
+    )
+
+    async with AsyncWebCrawler(config=browser_cfg) as crawler:
+        # 3) Run crawl (returns list even for single URL)
+        results: List[CrawlResult] = await crawler.arun(
+            url=run_cfg.url,
+            config=run_cfg,            
+        )
+        result = results[0]
+
+        # 4) Save screenshot and report path
+        if result.screenshot:
+            __current_dir = Path(__file__).parent
+            out_dir = __current_dir / "tmp"
+            out_dir.mkdir(exist_ok=True)
+            shot_path = out_dir / "geo_test.png"
+            with open(shot_path, "wb") as f:
+                f.write(base64.b64decode(result.screenshot))
+            print(f"Saved screenshot to {shot_path}")
+        else:
+            print("No screenshot captured, check configuration.")
+
+if __name__ == "__main__":
+    asyncio.run(demo_geo_override())