docs: add agent quickstart files for all SDK languages

[ericciarla]

Summary

• Adds one canonical agent quickstart file per SDK language in agent-quickstart/: Node.js, Python, Rust, Java, and Elixir.
• Each file covers the search, scrape, and interact endpoints with confirmed parameters, realistic examples, and language-specific notes.
• Generated from SDK source code and the v2 OpenAPI spec — SDK source is the primary authority, OpenAPI confirms the HTTP contract.

Files added

File	Language	Source
agent-quickstart/node.mdx	JavaScript/TypeScript	firecrawl npm package, v2 client + types
agent-quickstart/python.mdx	Python	firecrawl-py PyPI package, v2 client + types
agent-quickstart/rust.mdx	Rust	firecrawl crate, v2 client + types
agent-quickstart/java.mdx	Java	firecrawl-java Maven artifact, FirecrawlClient
agent-quickstart/elixir.mdx	Elixir	firecrawl hex package, auto-generated module

Structure per file

Each quickstart follows a consistent structure:

1. Install command
2. Auth example
3. When To Use What (search vs scrape vs interact)
4. Search — method, example, full parameter table
5. Scrape — method, example, full parameter table
6. Interact — method, example, parameter table
7. Notes — language-specific caveats, deprecated aliases, naming conventions
8. Source Of Truth — exact source files used

Language-specific differences documented

• Java and Elixir SDKs only expose code for interact (no prompt parameter) — documented in Notes.
• Elixir function names are auto-generated and verbose (scrape_and_extract_from_url, interact_with_scrape_browser_session) — documented as-is, no aliases invented.
• Rust uses ..Default::default() pattern for option structs — examples show idiomatic usage.
• Python uses snake_case exclusively in method signatures; types accept both snake_case and camelCase via Pydantic aliases.
• Node.js uses camelCase exclusively.

Test plan

• Verify each .mdx file renders cleanly in Mintlify
• Confirm parameter tables are accurate against current SDK versions
• Check code examples compile/run against latest SDK releases

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Generated by Claude Code

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