Skip plugin detail tabs in app Back and Forward

[brsbl]

Human comments

What was wrong

App Back/Forward compared complete URLs, so selecting plugin detail tabs added navigation stops within the same collection. After Browse → Installed → Automations → BB guide, Back selected Automations instead of returning to Browse.

What changed

• App Back/Forward skips plugin-tab-only entries within one collection context.
• Forward restores the last selected tab in the destination collection.
• Collection queries, Settings, deeper plugin routes, native history, and persisted tabs retain their existing behavior.

How you verified

• Remote CI passed on final head 7a2eb3817. Run
• The regression tests failed before the fix. Run
• Chrome for Testing 153: Back returned to Browse, Forward restored BB guide, and native Back selected Automations.
• Slop Cop found no P0/P1 issues; user QA remains pending.

Screenshots

Baseline: 2acfcb75d0c9c5b4a62047416cd2c51ffb38939c · Application implementation: c71d326851436fd119e4a3afb71a7335801ed8e8 · Captured at 2×.

The final head 7a2eb3817 only consolidates duplicate regression-test permutations. Its exact-head screenshot refresh was blocked when the development app failed to settle within 90 seconds.

State	Viewport	Before — main	After — branch
Back destination	Desktop · 1440×900	Open before	Open after
Back destination	Mobile · 390×844	Open before	Open after

Follow-up

• Normalize equivalent query encodings so %20 and + share one collection-history key.

BB-Thread-ID: thr_c7hh9tvnj3

AGENT GENERATED

[brsbl]

Closing and removing this abandoned layer at the originating user’s request.