fix(dashboard): permanently exclude imwalkinghere from suggestions

5min BTC Up/Down markets resolve faster than any copy can execute.
Author explicitly rejected this wallet (README.md line 42). Dashboard
was suggesting it because forward P&L happened to be positive in the
current 30d window - but the wallet is structurally uncopyable.

live/serve_dashboard.py

@@ -244,10 +244,12 @@ class Handler(http.server.SimpleHTTPRequestHandler):
             result["followed"].append(entry)
 
         # 5. 建议加的钱包（前瞻盈利 + copy_pnl 排名前 8 未跟）
+        # 永久排除的钱包（作者明确拒绝，不论前瞻表现）
+        never_follow = {"0xd96750bf8d941a8186e592b0ae6e096da66aa266"}  # imwalkinghere: 5min BTC，结算比跟单快
         followed_addrs = {w.get("wallet", "").lower() for w in followed}
         for i, s in enumerate(sharps_sorted):
             addr = s.get("wallet", "").lower()
-            if addr in followed_addrs:
+            if addr in followed_addrs or addr in never_follow:
                 continue
             if i >= 8:
                 break