feat(client): add React hooks — createCorsairReactClient()

[yuvrxj-afk]

Stacked on #250 — diff will clean up once that lands.

Summary

• Adds createCorsairReactClient({ baseURL }) — factory returning typed React hooks over the vanilla createCorsairClient.
• Hooks: useTenants, useTenant, useCreateTenant, usePlugins, usePlugin, useConnectionStatus, usePermission, usePermissionByToken, useCreateConnectLink, useOAuthCallback, plus the underlying client as an escape hatch.
• Two internal primitives — useAsync(fn, deps) for reads (idle → loading → success | error, with refetch) and useMutation(fn) for writes (stays idle until mutate(input)).
• Closes the management-client work for Feature: Create Corsair Client #241.

Notes

• React is a peer dep (>=18), not a hard dep. Vanilla client still works without React.
• jsdom test environment added for the React hook tests only (tests/setup-jsdom-fetch.cjs polyfills fetch under jsdom).
• Docs will land in a follow-up PR off main once feat(core): add connect and OAuth callback routes #250 and this merge.

Test plan

• 16 new tests in management-react-client.test.ts — loading/error/success states, refetch, re-fetch on dep change, mutation lifecycle
• Full suite passes

[vercel]

@yuvrxj-afk is attempting to deploy a commit to the corsair Team on Vercel.

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[greptile-apps]

Greptile Summary

Review completed and submitted via the Greptile review tools.

Confidence Score: 5/5

Safe to merge — core hooks are correct, race condition addressed, all tests pass.

No blocking issues found. Remaining items are non-blocking cleanup.

packages/corsair/client/react/index.ts

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[yuvrxj-afk]

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[devjain32]

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