feat(pii): Wire third-party breadcrumbs (Faraday, Net::HTTP, Excon, Redis)

[sl0thentr0py]

Stack position: 5/10. Blocked by #3001**,** #3002**.**

Gate outgoing HTTP client breadcrumbs and Redis command breadcrumbs via data_collection instead of send_default_pii.

Gate sites (all sentry-ruby)

• Faraday — lib/sentry/faraday.rb:62-65: query, body → query_params + http_bodies (:outgoing_request)
• Net::HTTP — lib/sentry/net/http.rb:75-78: query, body → same
• Excon — lib/sentry/excon/middleware.rb:64-71: query, body → same
• Redis — lib/sentry/redis.rb:65-69: command arguments → database.query_params

Files & tests

• faraday.rb, net/http.rb, excon/middleware.rb, redis.rb
• spec/sentry/faraday_spec.rb, spec/sentry/net/http_spec.rb, spec/sentry/excon_spec.rb, spec/sentry/redis_spec.rb, spec/sentry/breadcrumb/http_logger_spec.rb, spec/sentry/breadcrumb/redis_logger_spec.rb

Security-sensitive: outgoing request bodies/query + Redis args.

[linear-code]

RUBY-192