OpenCode Game Studios v0.4.2

Bridged Codex Game Studios v0.4.5–v0.4.7 (bug lifecycle consolidation, handoff two-round review gate, resume lane-selection boundary) into the OpenCode-native port.

v0.4.5 — Bug Lifecycle Consolidation

• Updated /bug-report verify so a VERIFIED FIXED result can complete verification evidence, closure, safe stale triage cleanup, and derived session-state routing under one approved changeset.
• Updated /bug-report close so already verified bugs can close and refresh stale triage metadata without a separate bookkeeping prompt.
• Clarified /bug-triage zero-open-bugs closure refresh as deterministic metadata cleanup.
• Added run_bug_lifecycle validator to prevent regression into forced verify → close → triage handoffs.

v0.4.6 — Handoff Two-Round Review Gate

• Restored /handoff's mandatory two-round review gate with STANDARD/ADVERSARIAL tier selection, pure-document exemptions, finding triage, conditional second review, pass caps, and an auditable handoff record.
• Kept the cross-check inside the active OpenCode session — no nested CLI, Task subagent reviewers, companion plugins, or external model services.
• Expanded the /handoff authorization boundary in AGENTS.md for narrow intent-preserving fixes.
• Added run_handoff_review validator to prevent the review contract or its no-egress safeguards from regressing.

v0.4.7 — Resume Lane-Selection Boundary

• Added a hard /resume-from-handoff lane-selection boundary: focus arguments only bias ranking, multiple lanes use structured choice, single lanes wait for numeric 1, and follow-up forks remain separate decisions.
• FIRST verification cannot be waived by lane choice. Entering a selected workflow grants no additional mutation authority.
• Added explicit Ranking Rules (6-level priority) and separated session-cache write (Step 6) from briefing (Step 7).
• Added run_resume_contract validator to enforce the selection-boundary contract.

Full Changelog: opencode-v0.4.1...opencode-v0.4.2