feat: batch TS updates including hooks updates, retries, multi-agent interrupts, timeouts on graphs, and small papercuts

[notowen333]

Summary

Batch documentation update covering recent TypeScript SDK changes:

• Multi-agent interrupts + InterruptEvent (sdk-typescript#1044): TS examples for BeforeNodeCallEvent interrupts in Swarm and Graph; InterruptEvent row + lifecycle node in hooks page.
• Hook event mutability + AfterInvocationEvent.resume (sdk-typescript#957): TS examples for Tool Interception (selectedTool, toolUse rewrite), Result Modification (mutable result), and three Invocation resume scenarios (summarize-after-tools, iterative refinement, auto-approve interrupts).
• DefaultModelRetryStrategy / ModelRetryStrategy / BackoffStrategy (sdk-typescript#888): Full TS support added to retry-strategies page, replacing the prior "not supported in TypeScript" placeholders. New Backoff Strategies subsection. Custom-subclass example uses DefaultModelRetryStrategy.isRetryable override.
• Graph/Swarm/Bedrock timeouts (sdk-typescript#1008): timeout and nodeTimeout constructor params on Graph and Swarm; per-node timeout on AgentNode; new "TypeScript Request Timeout" subsection in Amazon Bedrock page documenting the 120s default and override mechanism.
• Sliding window conversation manager (sdk-typescript#1018): Updated tool-result truncation bullet to reflect oldest-first ordering and per-content-type behavior (head/tail markers, typed placeholders).
• Tool name normalization (sdk-typescript#1017): Documented the ^[a-zA-Z0-9_-]+$ 1–64 char constraint and INVALID_TOOL_NAME placeholder behavior in custom-tools page.
• Small papercuts: em-dash sweep on interrupts page, "please refer to here" link cleanup, banned-phrase fixes, MCP Elicitation goal-led rewrite, interrupts_imports.ts extracted so TS imports render in the docs.

All TS API surface verified against the corresponding SDK source commits.

Test plan

• npm run format:check passes
• npm run typecheck:snippets shows zero errors in touched files (env requires npm run sdk:clone and SDK build first)
• Visual review of the 8 affected pages in npm run dev:
  • /docs/user-guide/concepts/interrupts/
  • /docs/user-guide/concepts/agents/hooks/
  • /docs/user-guide/concepts/agents/conversation-management/
  • /docs/user-guide/concepts/agents/retry-strategies/
  • /docs/user-guide/concepts/tools/custom-tools/
  • /docs/user-guide/concepts/multi-agent/graph/
  • /docs/user-guide/concepts/multi-agent/swarm/
  • /docs/user-guide/concepts/model-providers/amazon-bedrock/