fix: prevent empty cookie header in webhook callbacks (firecrawl#2504)

fix(scrapeURL/fire-engine/checkStatus): pending state

fix(concurrency-limit): logging

Merge pull request firecrawl#2276 from firecrawl/nsc/search-pdf

(feat/search) Pdf search category

temp(nuq): double polling interval

Merge pull request firecrawl#2143 from firecrawl/feat/adding-viasocke…

…t-integration

feat(api): add VIASOCKET integration

fix(api/v0/scrape): populate credits_billed field (firecrawl#2066)

Merge commit from fork

fix(webhook): use secureDispatcher to avoid SSRF vulnerability

JS SDK fixes

Add another customer exemption to crawl job expirarion