Release PhantomRecon 2.2.0: plugins, reporting, provider controls and automation

[c0d3s3cl4b]

PhantomRecon 2.2.0

This PR promotes the 2.2 development line to stable 2.2.0.

Added

• Python entry-point based third-party plugin discovery via phantomrecon.plugins
• phantomrecon plugins diagnostics with safe metadata-only discovery by default
• phantomrecon config effective runtime configuration output
• unified JSON/HTML reporting with phantomrecon report
• report directory configuration through PHANTOMRECON_REPORT_DIR
• HTML escaping for report values
• per-host shared HTTP throttling via PHANTOMRECON_HTTP_MIN_INTERVAL
• provider readiness, descriptions, homepage metadata, and JSON diagnostics
• plugin, reporting, config, and provider unit tests
• CI smoke tests for plugins, config, providers, and doctor
• tag-driven GitHub Release automation with wheel/sdist assets

Provider/network behavior

• shared HTTP retries honor Retry-After
• per-host request pacing reduces accidental bursts against public data providers
• provider diagnostics report readiness without sending probe traffic

Version

• stable version: 2.2.0

Safety

The bounded active DNS and TCP scan behavior from 2.1 remains unchanged. Plugin code is not imported during normal discovery unless --load is explicitly requested.

Ready to merge once the final Python 3.10/3.11/3.12 CI run is green.