merge(master): sync PR #861 with master; preserve F1–F10

Resolve conflicts from master (#858/#864/#868) while keeping published F10
PID-less lock freshness and dirty-orphan recovery (Issue #860 / PR #861).

Conflict resolutions:
- issue_lock_provenance.py: keep both SOURCE_RECOVER_DIRTY_ORPHANED and SOURCE_DIRTY_SAME_CLAIMANT_REBIND
- task_capability_map.py: keep both recover and rebind task entries
- gitea_mcp_server.py: keep both MCP tools
- issue_lock_store.py: restore F1–F9 helpers + surgical F10 owner_pid cascade

Closes #860

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

task_capability_map.py

@@ -41,6 +41,17 @@ TASK_CAPABILITY_MAP: dict[str, dict[str, str]] = {
         "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).
+    "rebind_dirty_same_claimant_author_session": {
+        "permission": "gitea.issue.comment",
+        "role": "author",
+    },
+    "gitea_rebind_dirty_same_claimant_author_session": {
+        "permission": "gitea.issue.comment",
+        "role": "author",
+    },
     "set_issue_labels": {
         "permission": "gitea.issue.comment",
         "role": "author",