Author orch Markdown test plan

docs/tests/orch/dispatch/README.md

@@ -1,7 +1,13 @@
 # Orch `dispatch` Test Plan Index
 
-## Status
+## Case Files
 
-No command case files are authored yet.
-
-Use [../ROADMAP.md](../ROADMAP.md) for planned case slugs and document progress.
+| Case Slug | File | Coverage Note |
+| --- | --- | --- |
+| `dispatch-creates-attempt-and-thread-for-ready-task` | [dispatch-creates-attempt-and-thread-for-ready-task.md](./dispatch-creates-attempt-and-thread-for-ready-task.md) | dispatches a ready task into a new attempt, inbox thread, and initial task message |
+| `dispatch-rejects-non-ready-task` | [dispatch-rejects-non-ready-task.md](./dispatch-rejects-non-ready-task.md) | rejects dispatch when the task is still gated by dependencies |
+| `dispatch-creates-strict-worktree` | [dispatch-creates-strict-worktree.md](./dispatch-creates-strict-worktree.md) | provisions a strict worktree and writes workspace metadata into the attempt and payload |
+| `dispatch-rejects-dirty-repo-without-base-ref` | [dispatch-rejects-dirty-repo-without-base-ref.md](./dispatch-rejects-dirty-repo-without-base-ref.md) | blocks strict worktree dispatch from a dirty repository without an explicit base ref |
+| `dispatch-allows-explicit-base-ref-on-dirty-repo` | [dispatch-allows-explicit-base-ref-on-dirty-repo.md](./dispatch-allows-explicit-base-ref-on-dirty-repo.md) | accepts dirty repository state when `--base-ref` resolves to a concrete commit |
+| `dispatch-auto-enables-worktree-for-code-like-task` | [dispatch-auto-enables-worktree-for-code-like-task.md](./dispatch-auto-enables-worktree-for-code-like-task.md) | auto-enables worktree mode for code-like tasks when no explicit worktree flags are supplied |
+| `dispatch-skips-auto-worktree-for-non-code-task` | [dispatch-skips-auto-worktree-for-non-code-task.md](./dispatch-skips-auto-worktree-for-non-code-task.md) | keeps clearly non-code tasks on the normal non-worktree dispatch path |