[bonelifer]

Adds screenshots.py scenarios for two extensions, documented in phpbb-test-board/README.md.

• phpbbmodders/printallposts: sets the board to two posts per page so the busiest topic spans two pages, then saves the Topic tools menu open with Print all, and the print page showing every post. Both are taken as a guest.
• phpbbmodders/posteripinviewtopic: gives the busiest topic's posts the IP address 8.8.8.8 (seeded posts come from 127.0.0.1, which the extension hides), then saves the address in a post's profile column and its lookup popup, as the admin. The lookup is real, so this run needs internet access.

Claude ran both against a fresh board seeded with seed-forum's standard fixtures: 4 screenshots saved, 0 failed.

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Investigated and written by Claude on behalf of William Jacoby (bonelifer).