Auto-enable worktrees for code tasks

docs/roadmaps/archive/orch-auto-code-worktree.md

@@ -0,0 +1,59 @@
+# Orch Auto Code Worktree
+
+## Status
+
+- `completed`
+
+## Owner
+
+- codex
+
+## Started At
+
+- `2026-03-19`
+
+## Goal
+
+- automatically select worktree mode for code-like `orch` tasks so leaders do not need to pass worktree flags for common code-writing dispatches
+
+## Scope
+
+- extend dispatch-time worktree selection to infer code-like tasks from existing task metadata
+- keep explicit worktree flags authoritative when provided
+- add integration tests for automatic worktree enablement and non-code fallback behavior
+- update the implementation roadmap and archive this workstream when complete
+
+## Checklist
+
+- [x] inspect current dispatch/worktree code and the remaining roadmap item
+- [x] implement automatic code-task detection for worktree selection
+- [x] add integration coverage for auto-enable and non-code fallback
+- [x] run `go test ./...`
+- [x] update `docs/implementation-roadmap.md`
+- [x] archive this roadmap with a completion summary
+
+## Files
+
+- `docs/roadmaps/archive/orch-auto-code-worktree.md`
+- `docs/implementation-roadmap.md`
+- `internal/cli/orch/worktree.go`
+- `internal/cli/orch/integration_test.go`
+
+## Decisions
+
+- infer code-like tasks from existing metadata instead of introducing a new required task field in this slice
+- prioritize explicit worktree flags over automatic detection so users can still force or shape dispatch behavior
+
+## Blockers
+
+- none
+
+## Next Step
+
+- move to `Milestone 7: Council Review`
+
+## Completion Summary
+
+- `orch dispatch` now auto-enables strict worktree mode for code-like tasks inferred from existing task metadata when explicit worktree flags are omitted
+- explicit worktree flags remain authoritative and non-code tasks still fall back to ordinary non-worktree dispatch
+- integration tests now cover both auto-enabled worktree dispatch and non-code fallback behavior