docs: add agent quickstart files for all SDK languages

[ericciarla]

Summary

• Adds one canonical agent quickstart file per SDK language: Node.js, Python, Rust, Java, and Elixir
• Each file covers the search, scrape, and interact endpoints with preferred SDK methods, realistic examples, and every confirmed parameter with descriptions
• Generated from SDK source code and the v2 OpenAPI spec — no invented parameters or methods
• Adds an "Agent Quickstarts" navigation group in docs.json between Quickstarts and Developer Guides

Files Added

File	Language	Key Details
agent-quickstart/node.mdx	Node.js/TypeScript	@mendable/firecrawl-js, camelCase params, code + prompt in interact
agent-quickstart/python.mdx	Python	firecrawl-py, snake_case params, code + prompt in interact
agent-quickstart/rust.mdx	Rust	firecrawl crate, async with tokio, code + prompt in interact
agent-quickstart/java.mdx	Java	com.firecrawl:firecrawl-java, builder pattern, code only in interact
agent-quickstart/elixir.mdx	Elixir	:firecrawl hex package, OpenAPI-generated, code only in interact

Notable cross-language differences documented

• interact prompt param: Available in Node.js, Python, and Rust SDKs. Not yet in Java or Elixir — documented explicitly in each file's Notes section.
• Naming: camelCase (JS/Java), snake_case (Python/Rust/Elixir)
• Elixir: Uses OpenAPI operation ID function names (e.g. search_and_scrape, scrape_and_extract_from_url)

Test plan

• Verify each .mdx file renders correctly in Mintlify
• Confirm all parameter names match current SDK source
• Check navigation group appears correctly in sidebar

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🤖 Generated with Claude Code

https://claude.ai/code/session_01Azy3JRK1deTVgn6pgjCSQB

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Generated by Claude Code

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[ericciarla]

CI failure: "Locale literals and extraction-hostile markdown" — not this PR's

The failing check (scripts/check-locale-api-literals.sh) flags translated API literals in locale files (es/, fr/, pt-BR/). This PR does not touch any localized files — it only adds new files under agent-quickstart/ and updates docs.json.

This same check is red on every recent workflow run in the repo (runs #22–#26), including unrelated PRs and the locadex translation bot's own PRs. It's a pre-existing base-branch issue.

No fix exists to port. The other two checks (Mintlify Validation and Mintlify Deployment) are the ones relevant to this PR's content.

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Generated by Claude Code