docs: add agent quickstart pages for all SDK languages

[ericciarla]

Summary

• Adds one canonical agent quickstart page per SDK language: Node.js, Python, Rust, Java, and Elixir
• Each page covers search, scrape, and interact endpoints with complete parameter tables
• All content generated from SDK source code and the OpenAPI spec (v2-openapi.json) — not from existing docs
• Adds an "Agent Quickstarts" navigation group in docs.json between Quickstarts and Developer Guides

What each page includes

• Install command and auth pattern
• "When To Use What" decision guide for search vs scrape vs interact
• For each endpoint: why to use it, preferred SDK method name, minimal working example, and a full parameter table with types and descriptions
• Language-specific notes (naming conventions, deprecated aliases, SDK quirks)
• Source of truth file list

Language-specific highlights

• Node.js / Python / Rust: Support both code and prompt for interact
• Java / Elixir: Interact requires code only (no prompt parameter) — documented explicitly
• Elixir: Function names are OpenAPI-generated (search_and_scrape, scrape_and_extract_from_url, interact_with_scrape_browser_session) — called out in notes
• Rust: Uses Default::default() struct pattern — examples show idiomatic usage

Test plan

• Verify each .mdx file renders correctly in Mintlify preview
• Confirm the "Agent Quickstarts" nav group appears in the sidebar
• Spot-check parameter tables against SDK source for accuracy
• Verify no localized files were modified

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Generated by Claude Code

[mintlify]

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Project	Status	Preview	Updated (UTC)
firecrawl	🟢 Ready	View Preview	Aug 16, 2026, 1:22 PM

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