Mock Link Server

• /health
• /oauth.html — OAuth redirect landing
• /link — Plaid Link flow (create token, link bank, exchange)
• POST /webhook — Plaid webhook receiver
• POST /create-link-token — Create a Plaid Link token
• POST /exchange — Exchange public_token for access_token

Redirect URI for Plaid Dashboard: https://desktop-267nja4.taila4e41a.ts.net/oauth.html