修复设置页异常数字字段导致保存失败 (#90)

app.py

@@ -376,24 +376,44 @@ def settings_config_from_params(params: Dict[str, list], base_config: Dict[str,
 
     # Update refresh settings
     if "refresh_interval" in params:
-        interval = int(params["refresh_interval"][0])
-        updated["refresh"]["interval_seconds"] = max(30, min(3600, interval))
+        current_interval = refresh_interval_seconds(updated["refresh"].get("interval_seconds"))
+        updated["refresh"]["interval_seconds"] = clamp_int_range(
+            params["refresh_interval"][0],
+            current_interval,
+            30,
+            3600,
+        )
     if "refresh_page" in params:
-        page_refresh = int(params["refresh_page"][0])
-        updated["refresh"]["auto_refresh_page_ms"] = max(30, min(3600, page_refresh)) * 1000
+        current_page_refresh = page_refresh_seconds(updated["refresh"].get("auto_refresh_page_ms"))
+        updated["refresh"]["auto_refresh_page_ms"] = clamp_int_range(
+            params["refresh_page"][0],
+            current_page_refresh,
+            30,
+            3600,
+        ) * 1000
 
     # Update Codex settings
     updated["codex"]["enabled"] = "codex_enabled" in params
     if "codex_source" in params:
         updated["codex"]["source"] = params["codex_source"][0]
     if "session_limit" in params:
-        limit = int(params["session_limit"][0])
-        updated["codex"]["session_file_limit"] = max(1, min(100, limit))
+        current_limit = codex_session_file_limit(updated["codex"].get("session_file_limit"))
+        updated["codex"]["session_file_limit"] = clamp_int_range(
+            params["session_limit"][0],
+            current_limit,
+            1,
+            100,
+        )
 
     # Update status board settings
     if "stale_after_seconds" in params:
-        stale_after = int(params["stale_after_seconds"][0])
-        updated["status"]["stale_after_seconds"] = max(60, min(86400, stale_after))
+        current_stale_after = status_stale_after_seconds(updated["status"].get("stale_after_seconds"))
+        updated["status"]["stale_after_seconds"] = clamp_int_range(
+            params["stale_after_seconds"][0],
+            current_stale_after,
+            60,
+            86400,
+        )
         updated.pop("vibe", None)
 
     # Update display settings
@@ -494,15 +514,13 @@ def redact_sensitive_request_line(request_line: str) -> str:
     return " ".join(parts)
 
 
-def status_stale_after_seconds() -> int:
+def status_stale_after_seconds(value: Any = None) -> int:
     """Return the heartbeat freshness threshold."""
-    value = config_section("status").get("stale_after_seconds")
     if value is None:
-        value = config_section("vibe").get("stale_after_seconds", 900)
-    try:
-        return max(60, int(value))
-    except (TypeError, ValueError, OverflowError):
-        return 900
+        value = config_section("status").get("stale_after_seconds")
+        if value is None:
+            value = config_section("vibe").get("stale_after_seconds", 900)
+    return clamp_int_range(value, 900, 60, 86400)
 
 
 def codex_session_file_limit(value: Any = None) -> int:

tests/test_vibe_status.py

@@ -391,20 +391,29 @@ def test_runtime_helpers_tolerate_invalid_config_sections(self):
         self.assertIn("InkDash", main_html)
         self.assertIn("设置", settings_html)
 
-    def test_settings_config_from_params_does_not_mutate_base_on_error(self):
+    def test_settings_config_from_params_preserves_base_on_bad_numeric_fields(self):
         base_config = app.merge_configs(app.DEFAULT_CONFIG, {
             "server": {"port": 8080},
-            "refresh": {"interval_seconds": 300},
+            "refresh": {"interval_seconds": 600, "auto_refresh_page_ms": 120000},
+            "codex": {"session_file_limit": 7},
+            "status": {"stale_after_seconds": 1200},
         })
         original = copy.deepcopy(base_config)
 
-        with self.assertRaises(ValueError):
-            app.settings_config_from_params({
-                "port": ["9090"],
-                "refresh_interval": ["bad-value"],
-            }, base_config)
+        updated = app.settings_config_from_params({
+            "port": ["9090"],
+            "refresh_interval": ["bad-value"],
+            "refresh_page": [""],
+            "session_limit": ["bad-value"],
+            "stale_after_seconds": ["bad-value"],
+        }, base_config)
 
         self.assertEqual(base_config, original)
+        self.assertEqual(updated["server"]["port"], 9090)
+        self.assertEqual(updated["refresh"]["interval_seconds"], 600)
+        self.assertEqual(updated["refresh"]["auto_refresh_page_ms"], 120000)
+        self.assertEqual(updated["codex"]["session_file_limit"], 7)
+        self.assertEqual(updated["status"]["stale_after_seconds"], 1200)
 
     def test_settings_config_from_params_returns_validated_copy(self):
         base_config = app.merge_configs(app.DEFAULT_CONFIG, {