chore(release): v1.5.2 manifest bump

Bumps csproj Version, repo.json AssemblyVersion/TestingAssemblyVersion
plus the three DownloadLink* URLs, yaml + repo.json changelog blocks
(slim-rule: v1.5.2 + v1.5.1 + v1.5.0 + v1.4.10 retained, v1.4.9
trimmed to the Full history footer link), docs CHANGELOG long-form
block, ROADMAP v1.5.2 marked complete and v1.5.3 set as next cycle
(FR localisation with Hezcal native-speaker review), README status
strings plus moved pre-v1.5.2 history. Changelog includes the
in-cycle UI shrink + Fox-Banner-TreeNode smoke fix and the
WizardLastShownVersion re-show-once mechanism for existing users.

docs/CHANGELOG.md

@@ -11,6 +11,53 @@ releases as an overview and links to the release pages for details.
 
 ---
 
+## Hellion Chat 1.5.2 — First-Run Wizard Rework (2026-05-18)
+
+UX patch. The single-page first-run wizard becomes a four-step staged-commit flow, the privacy
+profile catalogue gains a fourth entry "Roleplay", and a new power-settings stage surfaces six
+previously-hidden Configuration defaults. Existing v1.5.1 users see the new wizard once on first
+v1.5.2 boot via a new `WizardLastShownVersion` config marker.
+
+User-visible:
+
+- Wizard layout: Welcome → Privacy profile → Power settings → Done. Forge-Bronze pagination dots,
+  per-step Back / Decide later / Next footer. Decide-later and X-close both leave the existing
+  config untouched; only the Finish ✓ click commits pending choices.
+- Fourth privacy profile "Roleplay": Privacy-First whitelist plus `Say` and both emote types, with a
+  30-day retention window for `Say` and 90 days for the two emote channels. `Shout`, `Yell` and
+  `NoviceNetwork` stay out — public-distance noise from strangers is not story content.
+- Privacy picker becomes a 2×2 grid. Casual stays the recommended option with a ★ marker.
+- Power-settings stage surfaces six existing `Configuration` fields in one place: Load Previous
+  Session, Filter Include Previous Sessions, Auto-Tell-Tabs History Preload, Compact Density,
+  Prettier Timestamps, plus a built-in theme picker. No new settings are introduced — the stage just
+  collects what was previously buried in Settings → Privacy / Chat / Data Management / Optik.
+- Inline test hint on the done stage: `type /tell <Player Name> into chat` surfaces the auto-tell-tab
+  spawn mechanism for new users.
+- Wizard window starts at 720×480 (was 900×560) and can shrink to 600×400. Step 1 wraps the fox
+  banner in a collapsible TreeNode, folded by default — onboarding copy stays primary.
+- Existing v1.5.1 users get the new wizard surfaced once on first v1.5.2 boot. A new
+  `WizardLastShownVersion` config field tracks the most recent version whose wizard was shown;
+  Plugin.LoadAsync resets `FirstRunCompleted` once when the constant `1.5.2` doesn't match.
+
+Under the hood:
+
+- `WizardStateSmokeStep` registered with `/xlperf`. Variant 1 walks the four steps with empty
+  pending state to pin the no-op CommitPending path. Variant 2 picks Roleplay on Step 2, skips
+  Step 3, commits, and asserts `LoadPreviousSession` / `FilterIncludePreviousSessions` stayed on
+  their pre-test value — pinning the null-semantics contract. The step snapshots six privacy /
+  retention fields before Variant 2 and `CleanUp()` restores them, so back-to-back runs don't drift
+  the active profile.
+- Twelve pure-helper xUnit Facts in the Build Suite (`Privacy/PrivacyDefaultsTests.cs`) cover all
+  four profile whitelists plus the new Roleplay retention overrides.
+- `Configuration` grows one optional string field `WizardLastShownVersion` (default empty). No
+  schema bump — migration v17 still applies.
+
+Based on Chat 2 1.35.3 (upstream Infiziert90/ChatTwo, EUPL-1.2). EUPL-1.2.
+
+[Full release notes on the Gitea release page.](https://gitea.hellion-forge.cloud/JonKazama-Hellion/HellionChat/releases/tag/v1.5.2)
+
+---
+
 ## Hellion Chat 1.5.1 — FontAtlas Refactor and Hellion Forge Signature (2026-05-17)
 
 Hybrid FontManager refactor plus an embedded Hellion Forge provenance mark.