feat: Add retire_browser_after_page_count parameter for BrowserPool

[Mantisus]

Description

• Add retire_browser_after_page_count parameter for BrowserPool

[Mantisus]

Parameter added following the Crawlee TS.

[Copilot]

Pull Request Overview

Adds a new retire_browser_after_page_count option to retire browsers after they’ve opened a certain number of pages.

• Tracks and exposes a per-browser total_pages count
• Introduces retire_browser_after_page_count setting and retirement logic in BrowserPool
• Adds a unit test for the new retirement behavior

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
tests/unit/browsers/test_browser_pool.py	New parametrized test for retirement behavior
src/crawlee/browsers/_playwright_browser_controller.py	Add total_pages state, property, and increment
src/crawlee/browsers/_browser_pool.py	Add constructor parameter, doc updates, and retire logic
src/crawlee/browsers/_browser_controller.py	Declare abstract total_pages property in interface

Comments suppressed due to low confidence (2)

src/crawlee/browsers/_browser_pool.py:68

• The docstring for identify_inactive_browsers_interval mistakenly says 'retired'; it should read 'inactive' to accurately reflect that this interval only flags browsers as inactive.

                as retired.

src/crawlee/browsers/_browser_controller.py:31

• Since total_pages is now abstract on BrowserController, ensure every concrete implementation (not just Playwright) overrides this property to prevent instantiation errors or missing behavior.

    def total_pages(self) -> int:

[janbuchar]

LGTM, just some minor issues