merge(master): sync PR #853 with master; keep bootstrap and #860 transitions

Resolve task_capability_map.py by unioning #850 bootstrap_author_issue_worktree
preflight transitions with master's #860 dirty-orphan recovery and work_issue
commit transitions. No feature logic discarded.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

task_capability_map.py

@@ -32,6 +32,15 @@ TASK_CAPABILITY_MAP: dict[str, dict[str, str]] = {
         "permission": "gitea.issue.comment",
         "role": "author",
     },
+    # #860: dirty orphaned same-claimant worktree recovery (explicit operation).
+    "recover_dirty_orphaned_issue_worktree": {
+        "permission": "gitea.issue.comment",
+        "role": "author",
+    },
+    "gitea_recover_dirty_orphaned_issue_worktree": {
+        "permission": "gitea.issue.comment",
+        "role": "author",
+    },
     # #864: dirty-preserving same-claimant author-session rebind (dead owner PID).
     # Author MCP tool path. Reconciler execute is gated inside the tool via
     # authorize_reconciler_execute + role_kind checks (not this map entry).
@@ -496,8 +505,15 @@ TASK_CAPABILITY_MAP: dict[str, dict[str, str]] = {
 # merger lease (#763).
 _PREFLIGHT_TASK_TRANSITIONS = frozenset({
     ("review_pr", "acquire_reviewer_pr_lease"),
+    # #850: native author issue worktree bootstrap
     ("work_issue", "bootstrap_author_issue_worktree"),
     ("bootstrap_author_issue_worktree", "lock_issue"),
+    # #860: dirty-orphan recovery and related work_issue transitions (master)
+    ("work_issue", "lock_issue"),
+    ("work_issue", "recover_dirty_orphaned_issue_worktree"),
+    ("work_issue", "gitea_recover_dirty_orphaned_issue_worktree"),
+    ("work_issue", "commit_files"),
+    ("work_issue", "gitea_commit_files"),
 })