v0.3.5

What's Changed

• Priority-queue gateway (production-hardened): in-memory + distributed by @sanjay920 in #55
• Add gemini-3.8-flash by @sanjay920 in #56
• Release v0.3.5 by @sanjay920 in #57
• Fix release: allow clippy::result_unit_err on Backpressure::acquire by @sanjay920 in #58

Full Changelog: v0.3.4...v0.3.5