fix(cli): add reviewed command path fallbacks

internal/cli/command_path_fallbacks.json

@@ -0,0 +1,53 @@
+{
+  "$schema": "./command_path_fallbacks.schema.json",
+  "version": 1,
+  "entries": [
+    {
+      "from": "chat +search-group",
+      "mode": "rewrite",
+      "to": "chat +chat-search",
+      "reviewed": true,
+      "review_reason": "0803 evaluation badcase: the model emitted +search-group for group-name search; +chat-search is the exact reviewed shortcut and accepts the observed --keyword spelling."
+    },
+    {
+      "from": "chat +group-search",
+      "mode": "rewrite",
+      "to": "chat +chat-search",
+      "reviewed": true,
+      "review_reason": "0803 evaluation badcase: the model emitted +group-search with --query; +chat-search provides the same group-name search operation."
+    },
+    {
+      "from": "chat +chat-group-search",
+      "mode": "rewrite",
+      "to": "chat +chat-search",
+      "reviewed": true,
+      "review_reason": "H12 evaluation badcase: +chat-group-search was invented while resolving a group; +chat-search is the unique equivalent shortcut."
+    },
+    {
+      "from": "chat +chat-group-members",
+      "mode": "rewrite",
+      "to": "chat +chat-members-list",
+      "reviewed": true,
+      "review_reason": "H10/H19 evaluation badcases repeatedly emitted +chat-group-members; +chat-members-list is the reviewed full group-member shortcut."
+    },
+    {
+      "from": "chat +chat-list",
+      "mode": "ambiguous",
+      "candidates": [
+        "chat +my-groups",
+        "chat +chat-list-mine",
+        "chat +chat-list-all",
+        "chat +conversation-list"
+      ],
+      "reviewed": true,
+      "review_reason": "H12 evaluation badcase: chat-list does not identify whether the user wants joined groups, managed groups, every group, or all group/direct conversations."
+    },
+    {
+      "from": "chat group search",
+      "mode": "rewrite",
+      "to": "chat search",
+      "reviewed": true,
+      "review_reason": "0803 evaluation report observed this non-runnable hint path 60 times; chat search is the exact native group-name search leaf."
+    }
+  ]
+}