v3.0.1

net4cpp v3.0.1

PATCH release: locale-safe wire/log number formatting, parallel-test stability, and MCP/SSE shutdown wakeups.

Fixes

• JSONL structured fields and human-message ints no longer inherit thousands grouping from locale::global (e.g. "port":21,120 under --jobs>1)
• Endpoint streams imbue locale::classic() so Content-Length stays ungrouped
• RFC 1123 dates use std::format (year is 2026, not 2,026)
• Cross-thread slog capture via process-published sink; per-instance HTTP rate limiter
• Connector integration test uses a local acceptor instead of google.com
• SSE closed() observes endpointstream shutdown latch so poll-only handlers unblock on http::server::stop() (#68)
• Unbounded MCP session::recv() re-checks stream close so SSE handler threads do not hang after client disconnect (#69)

Notes

• Public surface unchanged: import net;
• Minimum toolchain: Clang 21+ with libc++ modules (std.cppm)
• Nested tester pin matches the ecosystem tip at tag time