feat: initial commit — antigravity proxy with MITM, standalone LS, and snapshot tooling

src/mitm/mod.rs

@@ -0,0 +1,19 @@
+//! MITM proxy module: intercepts LS ↔ Google/Anthropic API traffic.
+//!
+//! The LS (Go binary with BoringCrypto) respects `HTTPS_PROXY` and `SSL_CERT_FILE`.
+//! By setting these env vars via the wrapper script, we route all outbound HTTPS
+//! traffic through our local MITM proxy, which:
+//!
+//! 1. Terminates TLS using dynamically-generated per-domain certificates
+//! 2. Detects protocol: HTTP/1.1 (REST) or HTTP/2 (gRPC)
+//! 3. For HTTP/1.1: parses JSON/SSE responses (Anthropic format)
+//! 4. For HTTP/2: decodes gRPC protobuf responses (Google format)
+//! 5. Captures token usage data (input, output, thinking, cache)
+//! 6. Forwards everything transparently to real upstream servers
+
+pub mod ca;
+pub mod h2_handler;
+pub mod intercept;
+pub mod proto;
+pub mod proxy;
+pub mod store;