Slim embed tab rendering to cut memory use and restore calculator.

Load only per-tab data for embed fragments, skip exchange capital fetches on tab switches, and harden calculator market imports/timeouts.

Co-authored-by: Cursor <cursoragent@cursor.com>

instance_embed_lib.py

@@ -55,8 +55,23 @@ def path_to_embed_tab(path: str) -> str | None:
     return PATH_TO_EMBED_TAB.get(base)
 
 
+def embed_shell_enabled() -> bool:
+    return (os.getenv("HUB_EMBED_SHELL") or "1").strip().lower() in ("1", "true", "yes", "on")
+
+
 def rewrite_embed_dest(path: str, hub_theme: str | None = None) -> str:
     """embed=1 打开时：/trade → /embed?tab=trade&embed=1"""
+    if not embed_shell_enabled():
+        split = urlsplit(path or "/")
+        q = dict(parse_qsl(split.query, keep_blank_values=True))
+        q["embed"] = "1"
+        ht = (hub_theme or q.get("hub_theme") or "").strip().lower()
+        if ht in ("light", "dark"):
+            q["hub_theme"] = ht
+        dest = split.path or "/"
+        if q:
+            return f"{dest}?{urlencode(q)}"
+        return dest + "?embed=1"
     split = urlsplit(path or "/")
     tab = path_to_embed_tab(split.path)
     q = dict(parse_qsl(split.query, keep_blank_values=True))