Initial commit: LeadFlow lead generation platform

Full-stack Next.js 16 app with three scraping pipelines:
- AirScale CSV → Anymailfinder Bulk Decision Maker search
- LinkedIn Sales Navigator → Vayne → Anymailfinder email enrichment
- Apify Google SERP → domain extraction → Anymailfinder bulk enrichment

Includes Docker multi-stage build + docker-compose for Coolify deployment.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitattributes

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+# Normalize line endings to LF in the repo
+* text=auto eol=lf
+
+# Shell scripts must use LF (critical for Docker entrypoint)
+*.sh text eol=lf
+
+# Windows-specific overrides
+*.bat text eol=crlf
+*.cmd text eol=crlf