Release Backlink Intelligence public API v1.1.0

[alok-vibe-code]

Summary

• add the shared PlacementAnalysis service used by the CLI and FastAPI
• add successful no-match and manual-review outcomes
• return Unicode-safe structured after_segments
• harden source, target, redirect, and robots fetching against SSRF and response bombs
• add Turnstile, strict Host/Origin enforcement, rate and concurrency limits, no-store responses, and content-free logging
• add Render Free deployment configuration
• add v1 contract, Unicode, Host/Origin, and security tests

Verification

• python -m unittest discover -s tests: 47 tests passed
• python -m compileall -q backlink_intelligence: passed
• wheel build for 1.1.0: passed
• real Titan Codes CLI/API smoke test: completed with three manual-review opportunities and exact segment reconstruction

The beta thresholds remain private environment configuration and are not public SEO benchmarks.