Louie 7455f76351 feat: match Go TLS fingerprint for MITM upstream (#11) ...

* feat: match Go TLS fingerprint for MITM upstream connections

Replace rustls with boring2 (BoringSSL) for all MITM→Google upstream
connections, configured with Go crypto/tls exact defaults:

- Cipher suites: TLS_AES_128_GCM_SHA256 + 14 others in Go order
- Curves: X25519, P-256, P-384
- Signature algorithms: ECDSA+SHA256, RSA-PSS+SHA256, etc.
- HTTP/2 SETTINGS: 4MB stream window, 1GB connection window, 10MB
  header list, no adaptive windowing

Local TLS (LS→MITM) still uses rustls for CA cert presentation.
boring2/tokio-boring2 were already compiled as transitive deps from
wreq — no new build time added.

* chore: fmt + update README TLS description

2026-02-18 16:15:08 -06:00

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