chore: normalize redirect_url vs redirect_uri param naming

[broody]

Problem

The codebase inconsistently uses both redirect_url and redirect_uri as search param names:

• controller.ts:752 uses redirect_url
• session/provider.ts:296 uses redirect_uri
• node/provider.ts:145 uses redirect_uri
• session.tsx reads redirect_uri
• connection.ts was only reading redirect_url (fixed in fix: check both redirect_url and redirect_uri for domain verification #2474 to check both)

Proposal

Normalize everything to redirect_uri (the OAuth standard name) across the controller SDK and keychain.

Files to update

• packages/controller/src/controller.ts — change redirect_url → redirect_uri
• packages/controller/src/session/provider.ts:361 — change redirect_url → redirect_uri
• packages/keychain/src/hooks/connection.ts — remove redirect_url fallback once controller is updated
• Update related tests