v0.3.0

What's Changed

• Add SDK evolution upgrade commands by @ebarti in #16
• Add Codex SDK evolution auth helper by @ebarti in #17
• Add reusable SDK evolution upgrade script by @ebarti in #18
• Clarify provider install docs and package metadata by @ebarti in #15
• Fix stack 04: consistent finish_reason for structured/empty/truncated results by @ebarti in #28
• Add vendor SDK process reuse by @ebarti in #23
• [codex] Harden adapter layer: dedup helpers, reuse isolation, coverage gate by @ebarti in #24
• Fix stack 01: ignore secrets/reports, untrack committed run artifacts by @ebarti in #25
• Fix stack 02: evict reused client on cancellation + aclose/run-lock race by @ebarti in #26
• Fix stack 03: redact camelCase secrets, bound event sanitizer by @ebarti in #27
• Fix stack 05: monotonic permission ladder, honor READ_ONLY, Antigravity posture by @ebarti in #29
• Fix stack 06: per-turn Codex usage + session_id fallback parity by @ebarti in #30
• Fix stack 07: tool-audit and tool-event parity by @ebarti in #31
• Fix stack 08: uniform vendor-drift tolerance + off-loop Antigravity auth by @ebarti in #32
• Fix stack 09 (breaking): open runtime-kind + async lifecycle in protocol by @ebarti in #33
• Fix stack 10: typed model/reasoning_effort fields + FinishReason enum by @ebarti in #34
• Fix stack 11: freeze mapping fields; drop dead sdk_turn_limit by @ebarti in #35
• Fix stack 12: bound pre-1.0 SDKs, test real resolution, harden publish by @ebarti in #36
• Fix stack 13: correct doc drift + add API stability policy by @ebarti in #37
• Fix stack 14: example agent — opt-in/scrubbed candidate install, --draft-pr fix by @ebarti in #38

Full Changelog: v0.2.0...v0.3.0