respect origin browser TTL in Cloudflare rules

docs/CLOUDFLARE_FREE_CACHE_ZH.md

@@ -57,6 +57,8 @@ python scripts/configure_cloudflare_free.py --apply
 - 城市详情与 detail-batch：尊重源站成功、partial、stale 和错误缓存策略。
 - `/api/scan/terminal` 与 `/api/system/status`：尊重源站成功、busy、failed 和错误缓存策略。
 
+所有公开缓存规则都显式设置 Browser TTL 为 Respect origin，避免 Cloudflare 免费版默认 Browser Cache TTL 把 HTML 或数据接口改成 4 小时本地缓存。
+
 ### 2. 最后绕过后端域名、动态和敏感请求
 
 动作：Bypass cache

scripts/configure_cloudflare_free.py

@@ -107,7 +107,10 @@ def _compact_expression(expression: str) -> str:
 
 
 def _cache_rule(ref: str, description: str, expression: str, ttl: int | None = None) -> Dict[str, Any]:
-    action_parameters: Dict[str, Any] = {"cache": True}
+    action_parameters: Dict[str, Any] = {
+        "cache": True,
+        "browser_ttl": {"mode": "respect_origin"},
+    }
     if ttl is not None:
         action_parameters["edge_ttl"] = {
             "mode": "respect_origin",

tests/test_cloudflare_free_config.py

@@ -23,10 +23,14 @@ def test_cloudflare_managed_rules_apply_path_specific_edge_ttls_then_bypass_sens
     ] == [31536000, 600, 300]
     for rule in rules[:3]:
         assert rule["action_parameters"]["cache"] is True
+        assert rule["action_parameters"]["browser_ttl"] == {"mode": "respect_origin"}
         assert rule["action_parameters"]["edge_ttl"]["mode"] == "respect_origin"
         assert rule["action_parameters"]["edge_ttl"]["status_code_ttl"][1]["value"] == 0
     for rule in rules[3:-1]:
-        assert rule["action_parameters"] == {"cache": True}
+        assert rule["action_parameters"] == {
+            "cache": True,
+            "browser_ttl": {"mode": "respect_origin"},
+        }
     assert rules[-1]["action_parameters"]["cache"] is False
     assert 'http.host eq "api.polyweather.top"' in rules[-1]["expression"]
     assert 'http.request.uri.query contains "force_refresh=true"' in rules[-1]["expression"]