Tester-Request from Jin (2026-05-03): TempTabs should be pinnable so a
key conversation partner survives a relog. Right-click a TempTab and
choose Pin Tab / Unpin Tab / Promote to permanent.
Pool semantics:
- AutoTellTabsLimit (15) still gates the auto-managed unpinned pool.
- Pinned TempTabs live in their own pool, hard-capped at 5.
- The 6th pin attempt fails with a notification; users can unpin first
or promote to permanent.
- Unpinning into a full unpinned pool drops the oldest unpinned (no
user friction).
Mechanics:
- Tab.IsPinned (default false); Tab.Clone() carries it.
- Migration v16 -> v17 (additive; existing tabs default to unpinned).
- Three strip-sites synchronised through TabLifecycleHelpers:
Plugin.cs load-time, Plugin.SaveConfig, Configuration.UpdateFrom.
- AutoTellTabsService:
* MaxPinnedTempTabs constant.
* F2.1 _activeTempTabCount counter retired — ActiveTempTabCount is
now Tabs.Count(predicate). Pin/Unpin/Promote transitions are
cold-path and don't need lock-free reads.
* DropOldestTempTab filters on IsInUnpinnedPool so pinned tabs are
never drop candidates.
* OnLogout strips only the unpinned pool; pinned popouts and the
active-tab switch behave correspondingly.
* TryPin / Unpin / PromoteToPermanent service methods.
- ChatLogWindow tab context menu: Pin / Unpin / Promote with disabled-
state at-cap tooltip + Promote tooltip explaining the channel-filter
side effect.
- HellionStrings (EN+DE) for menu labels, tooltips, the limit warning.
- AutoTellTabsLimit slider description now flags the separate pinned
pool so users aren't surprised by 18 tabs when the limit reads 15.
JonKazama-Hellion
fd5f970a8b