fix(vision-manager): symmetric ERR handling + smoke tests + analysis reload reclaim test (0.87.15)

0.87.7 + 0.87.8 follow-ups:

1. mem_check_and_stop now defers on docker ERR instead of silently
   no-op'ing the SIGTERM under pressure.
2. Post-mem_check_and_stop loop refresh now also handles the ERR
   sentinel (continues the loop) rather than letting it reset up_for
   and defeat MAX_UPTIME.
3. New `vision-manager/test_manager.sh` — 7 smoke tests covering
   vision_running's three exit shapes and mem_check_and_stop's ERR
   symmetry, via stubbed docker/psql/curl on PATH. Production loop
   guarded by MANAGER_TEST_NO_MAIN.
4. New `app::tests::spawn_analysis_daemon_reclaims_orphaned_analyze_leases`
   pins the 0.87.7 wire-through: seeds an expired analyze_page lease,
   spawns + shuts down, asserts pending + attempts refunded.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mangalord-frontend",
-  "version": "0.87.14",
+  "version": "0.87.15",
   "private": true,
   "type": "module",
   "scripts": {