openai/gpt-chat-latest → A (3:2)

Side A fixes a concrete data-import issue by filtering Reddit stickied/pinned posts during subreddit listing parsing, adds a dedicated helper that checks both `stickied` and `pinned` flags, and includes a regression test verifying only normal posts are imported. Side B bundles several UI and routing tweaks plus a small behavioral fix (returning no next pair instead of falling back to all items), but much of the patch is route renaming, link updates, and interface cleanup rather than durable core functionality.