fix(review): harden #211 decision lock and CLI gate per review blockers

- Bind review decision state to in-process session (pid + profile lock); drop /tmp file path.
- Fail closed on review_pr.py CLI; route live reviews through gated MCP tools only.
- Require operator_authorized on review correction; allow re-mark after correction.
- Validate remote/org/repo on mark and submit; wire review mutation proof into build_final_report.
- Add security regression tests for spoofed locks, correction flow, and CLI bypass.

Refs #211

tests/test_pr_queue_inventory.py

@@ -122,9 +122,9 @@ class TestPRQueueInventory(unittest.TestCase):
         # mock_api: 1) /user (inventory), 2) /user (eligibility), 3) /pulls/1 (eligibility), 4) /pulls/1/reviews (POST review)
         mock_api.side_effect = [
             {"login": "reviewer1"}, # inventory whoami
-            {"login": "reviewer1"}, # eligibility whoami
-            {"state": "open", "head": {"sha": "abc1"}, "mergeable": True, "user": {"login": "other_user"}}, # eligibility PR details
-            {"id": 100} # POST review
+            {"login": "reviewer1"}, # submit eligibility whoami
+            {"user": {"login": "other_user"}, "state": "open", "head": {"sha": "abc1"}, "mergeable": True}, # submit eligibility PR
+            {"id": 100}, # POST review
         ]
 
         from mcp_server import init_review_decision_lock, gitea_mark_final_review_decision