chore(tests): prune obsolete probes and define truthful offline test gates

scripts/rea/probe-quote-table-add-20261017.json

@@ -1,11 +0,0 @@
-{
-  "include_fonts": false,
-  "include_message_content": true,
-  "track_selectors": [".cr-table-block", ".cr-message-quote-table-menu", ".cr-message-quote-table-action", ".cr-input-banner-rail", ".cr-input-quote-card"],
-  "actions": [
-    { "kind": "hover", "step_id": "hover-table", "selector": ".cr-table-block", "index": 0, "frames": 1 },
-    { "kind": "wait", "step_id": "menu-visible", "duration_ms": 250, "frames": 1 },
-    { "kind": "click", "step_id": "add-table-to-conversation", "selector": ".cr-message-quote-table-action", "index": 0, "frames": 0 },
-    { "kind": "wait", "step_id": "quote-card-rendered", "duration_ms": 600, "frames": 2 }
-  ]
-}