## Why
Windows MSVC builds relied on installed C++ toolchains, and V8 snapshot generation required native Windows execution. Cross-compiling V8 also needs a Windows snapshot generator to preserve Windows unwind metadata.
## What changed
- Use the registered hermetic LLVM toolchain and declared Microsoft SDK for Windows MSVC builds, with static CRT linkage and the toolchain's declared `lld-link` for Rust.
- Run Windows V8 snapshot generators natively or through `rules_wine` on Linux, preserving target CPU, OS, and sandbox settings. Keep separate archive and binding pairs for the workspace's ISO stdio ABI and the distributed MSVC stdio ABI.
- Update build dependencies and bindgen, scope V8's Chromium libc++ settings to its own targets, and adapt native voice dependencies for clang-cl and Windows ARM64.
- Build SQLite directly with Bazel and give `openssl-sys` an explicit build using Bazel's OpenSSL.
- Remove build-worker source-directory dependencies from Bazel resource lookup, schema output discovery, and snapshot paths; embed assets in debug builds as well.
GitOrigin-RevId: fd224d9d28d73a67baf90f6d73c6079d60f20351
## Why
Bazel release builds need Cargo-compatible Rust and native build-script settings. Platform-specific issues also include Windows command-line limits, MSVC runtime conflicts with V8's allocator, and a missing V8 `__clear_cache` symbol on ARM64 musl.
## What changed
- Add `--config=release` settings for thin LTO, four target codegen units, and disabled debug assertions and overflow checks, with separate settings for build tools.
- Add opt-in Cargo release profile support for build-script optimization and debug information, preserving explicit C/C++ flags. Give optimized Bubblewrap builds `-O3`, debug symbols, and enabled native assertions.
- Statically link the MSVC CRT for Rust and C/C++ target and host dependencies, and disable SQLite intrinsics on x64 MSVC to avoid startup crashes on older CPUs.
- Let the Rust process wrapper read its arguments from a multiline parameter file to avoid Windows command-line limits.
- Select the ARM64 musl V8 archive containing compiler-rt builtins and raise the Rust recursion limit to `256` in the app-server client, exec, and TUI entry points for release compilation.
GitOrigin-RevId: 8f61e62b8735c36209ee92e04a0e0339a70badc5
zbarsky-openai