chore: bump version to 1.4.7, sync changelog and forge post

- csproj <Version> -> 1.4.7
- repo.json AssemblyVersion + TestingAssemblyVersion -> 1.4.7.0
- repo.json DownloadLink{Install,Update,Testing} URLs -> /v1.4.7/
- repo.json + HellionChat.yaml changelog: prepend v1.4.7 block, retire
  v1.4.3 (slim rule keeps the last 3-4 versions)
- docs/CHANGELOG.md + docs/ROADMAP.md: v1.4.7 section, next-cycle
  pointer flipped to v1.4.8 Hook-Layer-Cycle
- README.md release badge + version stamps + Project Status block
  rewritten for v1.4.7
- .github/forge-posts/v1.4.7.md (new): DE body with subtitle
  "Backlog Cleanup and Mid-Features" / versionsnatur "Mid-Feature-Patch"
- Pin diagnostic logs (RehydratePinnedTabs / TryPin / Unpin /
  PromoteToPermanent) downgraded from Info to Debug so non-debug
  console stays quiet on release builds

README.md

@@ -2,7 +2,7 @@
 
 [![Build](https://gitea.hellion-forge.cloud/JonKazama-Hellion/HellionChat/actions/workflows/build.yml/badge.svg?branch=main)](https://gitea.hellion-forge.cloud/JonKazama-Hellion/HellionChat/actions/workflows/build.yml)
 [![License: EUPL-1.2](https://img.shields.io/badge/License-EUPL--1.2-blue.svg)](LICENSE)
-[![Latest release](https://img.shields.io/badge/release-v1.4.6-brightgreen)](https://gitea.hellion-forge.cloud/JonKazama-Hellion/HellionChat/releases/latest)
+[![Latest release](https://img.shields.io/badge/release-v1.4.7-brightgreen)](https://gitea.hellion-forge.cloud/JonKazama-Hellion/HellionChat/releases/latest)
 [![Dalamud API](https://img.shields.io/badge/Dalamud-API_15-purple)](https://github.com/goatcorp/Dalamud)
 [![.NET](https://img.shields.io/badge/.NET-10.0-512BD4)](https://dotnet.microsoft.com/)
 [![FFXIV](https://img.shields.io/badge/FFXIV-Dawntrail-c3a37f)](https://www.finalfantasyxiv.com/)
@@ -11,7 +11,7 @@
   <img src="docs/images/hellion-forge.png" alt="Hellion Forge" width="180" />
 </p>
 
-**Version 1.4.6** — Privacy-first chat plugin for FINAL FANTASY XIV / Dalamud, built on
+**Version 1.4.7** — Privacy-first chat plugin for FINAL FANTASY XIV / Dalamud, built on
 [Chat 2](https://github.com/Infiziert90/ChatTwo) (EUPL-1.2).
 
 Hellion Chat is a privacy-first plugin built on the Chat 2 foundation. The majority of the engine comes from Chat 2
@@ -286,20 +286,23 @@ An optional submission to the Dalamud main plugin repo (in addition to the custo
 
 ## Project Status
 
-**Version 1.4.6** — Maintenance patch. No user-visible behaviour changes; tightens the development feedback loop and
-pulls in two ChatTwo upstream bugfixes. `scripts/preflight.sh` gains a csharpier reflow check and a markdownlint pass at
-the pre-push gate. `FontManager`'s font-fallback catch-filter now covers `InvalidOperationException` and
-`ArgumentException` on top of the IO triad, so a corrupted font config no longer takes down the atlas build.
-`BrandingLinks` and `IntegrationLinks` URLs validate themselves on plugin load — a typo in a future URL rotation throws
-at startup instead of failing silently when a user clicks the broken button. Cherry-picked from ChatTwo upstream
-`f35b7d3`: `Chat.SetChannel` no longer leaks the native `Utf8String` when the linkshell check rejects the channel, and
-`Tab.Clone` now deep-clones `UsedChannel` and `TellTarget` (the previous reference copy let PopOut and Temp tabs mutate
-each other's channel state). The active-tab underline pill scales with DPI and rounds to physical pixels for crisp
-rendering above 100 % DPI. Internal items: `HellionStyle` ChildBgAlpha extracted to a testable helper,
-`Plugin.SaveConfig` clones only the temp-tab subset, `SettingsOverview` caches the draw-list per frame,
-`Dalamud.Utility.Util` static surface routed through an `IPlatformUtil` indirection (`MessageStore`'s `IsWine` probe is
-now testable in isolation). No schema bump, no migration. Seventh sub-patch of the v1.4.x polish sweep series (as of
-2026-05-12).
+**Version 1.4.7** — Backlog cleanup and the first user-visible feature bundle since v1.4.5. TempTell tabs can now be
+pinned via right-click; pinned tabs survive relog, keep their conversation history (loaded on demand from the message
+store), and stay bound to the same `/tell` partner. A hard cap of 5 pinned tabs lives in a pool separate from the 15-tab
+auto-tell pool, so the total ceiling is 20 tabs. The sidebar groups pinned tabs into their own section with its own
+divider header. Honorific glow outlines now render when the title carries a Glow colour — opt-in via **Settings →
+Integrations → Render glow outlines (Honorific)**, default off, so v1.4.6 visuals stay untouched for users who don't
+care and the per-frame DrawList overhead is skipped on low-end hardware. Honorific gradient (Color3 / GradientColourSet
+/ Wave / Pulse) is parsed and stashed for a later cycle, but currently renders as the primary colour. Sidebar width is
+configurable in **Theme & Layout** between 44 and 160 px; default stays icon-only so existing users see no layout
+change. `Configuration.UpdateFrom` now preserves the runtime `CurrentChannel` across the persistent-tab merge, and
+`TabSwitched` deep-clones the seeded channel — together they fix a Settings-Save regression where the chat input could
+pop back to `/tell <pinned-partner>` after touching settings while on a Party or Linkshell tab. Internal items:
+`IPluginLogProxy` indirection over Dalamud's `IPluginLog` routes all ~91 `Plugin.Log` call sites through a testable
+proxy, closing the test-isolation gap F12.1 left in v1.4.6 (`MessageStore.Migrate0` now runs in xUnit without loading
+`Dalamud.dll`). `Util/ImGuiUtil.cs`'s `DrawArrows` IconButton id gets explicit parentheses on the increment. Migration
+v16 → v17 is additive (new `Tab.IsPinned` flag, default false). Eighth sub-patch of the v1.4.x polish sweep series (as
+of 2026-05-13).
 
 Hellion Chat is a standalone plugin, no longer a fork in the repository sense. Fully completed: