docs: release notes for 2026-06-12 release

.changeset/big-moments-unite.md

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.github/release-notes-20260612.md

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+## Fixed
+
+- Skillset member picker only searched public skills; now browses all visible skills (system, public, private, shared)
+- Landing announcement popups flashed a transparent frame before the glass-blur effect appeared
+- Chat-completion tool calls now normalized into Responses events for compatibility
+- Few technical bugs fixed
+
+## New Feature
+
+- Skill explorer panel in skillset create/edit — scope tabs (All, System, Public, My Skills, Shared), search, expandable version selection
+- Skillset dependency graph popup is now click-to-open, centered with blurred backdrop, instead of hover-triggered
+- Graph nodes are draggable on the detail page for visual rearrangement
+- Launch promotion foundation — admin manual award + user /me status endpoint
+- Dependency graph modernised with Forge card nodes, animated edges, and blueprint grid
+- Technical enhancement
+
+## Changed
+
+- Hero CTA buttons no longer have a background overlay plate
+- Ornn assistant mascot defaults to right-edge, vertically centered
+- User directory search and resolve endpoints now gated and scoped
+- Technical enhancement