v0.3.4

Keep shared HTTP reads responsive while serializing complete writes. Use the published JSON 0.16.2 and MCP 0.18.4 graph with the pinned Sigil 0.22.15 runtime. Native Phantom public qualification folio-034-public-qual-20261025-0023 passed the full suite, HTTP/process/census gates, both real bridge protocols, and cold/warm parity gates.