chore(release): react-ui 0.13.1

[ankit-thesys]

react-ui 0.13.1

This release ships everything merged since 0.13.0. This PR is the version bump only (packages/react-ui 0.13.0 → 0.13.1); there are no code changes here. Strictly additive — no breaking changes: everything that works on 0.13.0 works unchanged on 0.13.1.

What's new

• AmbientLoader + DotMatrixLoader are now public (feat(react-ui): ambient loading state for AgentInterface + export DotMatrixLoader #835). AmbientLoader is the new ambient loading state — blurred glow blobs breathing behind the dot-matrix loader, with a required contextual label so no surface renders a bare "Loading…". Neutral themes render soft luminance depth; branded themes tint through the accent token; freezes under prefers-reduced-motion. Opening a thread no longer blanks the panel while messages load. DotMatrixLoader — internal in 0.13.0 — is now stabilized and exported for standalone use.
• Prompt-templates welcome API (feat(react-ui): native prefill-chips welcome screen #831, refined in Add AppLess to projects #833) — native welcome-screen prompt template chips with a first-class API, replacing hand-rolled starter arrangements.
• Auto-focus hook (Add Hook for Autofocus on Agent Interface #800) — composer focus management out of the box.
• Improved tool-tray behavior (Improve tool tray behaviour #822).

Fixes

• Collapsed-sidebar open button could become unreachable due to a reveal race (fix(react-ui): collapsed-sidebar open button could become unreachable (reveal keyed to animation state) #809).
• False "unknown key" warnings for valid *ChartPalette theme keys (fix(react-ui): stop false "unknown key" warnings for valid *ChartPalette theme keys #721).
• Conversation starter max-width and padding at narrow breakpoints (style(react-ui): adjust max-width and padding for conversation starter component #810 + follow-up polish).

Also in the repo

• New open-ended Generative UI example (Open ended Generative UI example #823).

Publishing

Patch release per the project's 0.x versioning convention (minors signal breaking changes; patches are safe upgrades). After merge, publish runs the standard prepublish gates (check:css, publint, attw).

this is a patch update