docs: TypeScript SDK v1.14.1 and v1.14.2

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Summary

Documents user-facing changes from TypeScript SDK v1.14.1 and v1.14.2.

TypeScript SDK v1.14.1

• Ingress client default serde: The clients.connect() options now accept a serde field. When set, this serde is used as the default for all handler calls, workflow attach/output polling, awakeable resolution, and attached invocation results — unless overridden per call with rpc.opts(...) / rpc.sendOpts(...).

TypeScript SDK v1.14.2

• Internal changes only (test infrastructure, memory leak fix, experimental unreleased module). No user-facing changes to document.

Changes

• Added code snippet demonstrating serde in ConnectionOpts
• Added "Custom serialization" section to the TypeScript SDK clients page
• Updated the Coding Agent plugin reference with the new default serde pattern

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