Fork discipline: staying mergeable with OpenCode

doc.haus pulls upstream innovation with git merge upstream/dev. This path shows the rules that keep that merge clean and the seams where the legal product actually lives.

6 · The upstream delta

The fork's mergeability story is mostly true and worth stating precisely (verified with git log --diff-filter=M -- packages):

Additive paths (dochaus/, services/, apps/, demo/) carry ~39 fork commits and cannot conflict with git merge upstream/dev.
Doc/metadata files (README.md, AGENTS.md, CONTRIBUTING.md, SECURITY.md, .github/ ownership) keep doc.haus content in a prepended section above the upstream body.
But the code delta is no longer zero. Two isolated, justified commits modify 4 upstream files — exactly the escape hatch CLAUDE.md allows:
- 5d93749 lifts the GlobalBus max-listener cap (packages/opencode/src/bus/global.ts) because every SSE subscriber is one listener and multi-tab use exceeds Node's default of 10.
- 7e837bc makes the V2 session runner honor per-agent steps caps instead of a hardcoded 25 (packages/core/src/session/runner/llm.ts
  - two test files) — doc.haus agents like qa set steps in frontmatter.