Add fabro-static::EnvVars as the shared registry for fixed environment variable names and migrate env reads, clap env bindings, and subprocess/test allowlists to use it.
Add clippy bans for raw std::env lookup APIs so future dynamic env facades must be documented explicitly.
Tighten CLI loopback target classification to use literal host checks,
update explicit local TCP auth coverage to match the remote-target
contract, and align server CSP assertions with the current external-script
SPA bundle. Also enable reqwest cookies in fabro-http so package-scoped
server tests compile without relying on workspace feature unification.
Add the shared fabro-http transport crate and route hand-written HTTP client construction through it.
Use FABRO_HTTP_PROXY_POLICY for test no-proxy defaults, remove direct reqwest deps from ordinary crates, and add clippy bans for raw reqwest entrypoints.
