Integrate thinking orbs for enhanced loading animations

[harshil-2096]

Summary

Screencast.from.2026-09-08.16-49-10.webm

Changes

How was this tested?

Checklist

• I have read the contributing guidelines
• pnpm build, pnpm test, pnpm typecheck, pnpm lint:ci, and pnpm format:check pass locally
• Tests added/updated where it makes sense
• No hand-edits to generated code (packages/trueforge-sdk, .github/fern/openapi/openapi.json, docs/openapi.json) — fork PRs omit SDK regen; maintainers regenerate after merge
• Docs / .env.example updated if configuration or behavior changed

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Note

Low Risk
Visual-only loading UX and dependency addition; no auth, data, or routing logic changes.

Overview
Boot and server-init loading states now show the thinking-orbs ThinkingOrb (connecting state) instead of CSS spinners or the primitive Spinner.

The host app adds a Loader that reads theme via useTheme so the orb matches light/dark inside ThemeProvider. ServerInitLoader in TrueForgeUIShell does the same with useThemeMode, which defaults to light when rendered outside ThemeProvider (e.g. Suspense). .boot-screen gets background: var(--primary-bg) so the orb stays visible against the pre-theme white body.

thinking-orbs is added as a dependency on @truefoundry/trueforge-ui and the frontend package; tests mock the orb and assert it appears during server init.

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🦋 Changeset detected

Latest commit: 033ef1c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@truefoundry/trueforge	Patch
@truefoundry/trueforge-ui	Patch

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