fix(config): 保存不再误删 CLI 后加的顶层配置节 + 未知供应商类型原样保留

- 导出 stale-key 清理增加导入基线（imported_section_keys）：CLI 在导入后
  新增的顶层节（kimi-code 0.38+ 的 [task]/[swarm]/[cron] 等）在保存时
  原样保留；用户在 UI 显式删除的节仍被移除；空基线（SQLite 快照恢复）
  不删任何键（安全退化）
- ProviderType 增加 Unknown(String) 变体，手写 serde 保持纯字符串线格式，
  上游新增的 type 值往返不再被改写为 kimi；SQLite 快照恢复路径同步修复；
  模型发现对未知类型返回明确错误，不再误用 KIMI_API_KEY
- 新增 3 个往返测试（106 个 Rust 测试全绿），前端 tsc/vitest 通过

src-tauri/src/commands.rs

@@ -244,6 +244,7 @@ fn build_active_config(config: &Config) -> Config {
         providers,
         models,
         raw_other: config.raw_other.clone(),
+        imported_section_keys: config.imported_section_keys.clone(),
     }
 }
 
@@ -277,6 +278,9 @@ pub async fn list_provider_models(provider: Provider) -> Result<Vec<DiscoveredMo
         ProviderType::Anthropic => fetch_anthropic_models(&base, &api_key).await,
         ProviderType::GoogleGenai => fetch_google_genai_models(&base, &api_key).await,
         ProviderType::Vertexai => Err("Vertex AI model discovery requires GCP project/location configuration and is not yet supported".to_string()),
+        ProviderType::Unknown(s) => Err(format!(
+            "unsupported provider type for model discovery: {s}"
+        )),
     }
 }
 
@@ -338,8 +342,12 @@ fn resolve_api_key(provider: &Provider) -> Option<String> {
             return Some(key.clone());
         }
     }
-    let env_key = expected_api_key_key(&provider.provider_type);
+    if let Some(env_key) = expected_api_key_key(&provider.provider_type) {
-    provider.env.get(env_key).filter(|s| !s.is_empty()).cloned()
+        if let Some(key) = provider.env.get(env_key).filter(|s| !s.is_empty()) {
+            return Some(key.clone());
+        }
+    }
+    None
 }
 
 fn resolve_base_url(provider: &Provider) -> String {
@@ -356,13 +364,16 @@ fn resolve_base_url(provider: &Provider) -> String {
         })
 }
 
-fn expected_api_key_key(provider_type: &ProviderType) -> &'static str {
+/// Well-known env var fallback for the API key per provider type; `None`
+/// for unknown types (no well-known variable name to look up).
+fn expected_api_key_key(provider_type: &ProviderType) -> Option<&'static str> {
     match provider_type {
-        ProviderType::Kimi => "KIMI_API_KEY",
+        ProviderType::Kimi => Some("KIMI_API_KEY"),
-        ProviderType::Anthropic => "ANTHROPIC_API_KEY",
+        ProviderType::Anthropic => Some("ANTHROPIC_API_KEY"),
-        ProviderType::Openai | ProviderType::OpenaiResponses => "OPENAI_API_KEY",
+        ProviderType::Openai | ProviderType::OpenaiResponses => Some("OPENAI_API_KEY"),
-        ProviderType::GoogleGenai => "GOOGLE_API_KEY",
+        ProviderType::GoogleGenai => Some("GOOGLE_API_KEY"),
-        ProviderType::Vertexai => "VERTEXAI_API_KEY",
+        ProviderType::Vertexai => Some("VERTEXAI_API_KEY"),
+        ProviderType::Unknown(_) => None,
     }
 }
 
@@ -650,9 +661,8 @@ pub async fn query_provider_usage(
         .clone()
         .filter(|s| !s.trim().is_empty())
         .or_else(|| {
-            provider
+            expected_api_key_key(&provider.provider_type)
-                .env
+                .and_then(|env_key| provider.env.get(env_key))
-                .get(expected_api_key_key(&provider.provider_type))
                 .cloned()
                 .filter(|s| !s.is_empty())
         });

src-tauri/src/db.rs

@@ -207,6 +207,9 @@ pub fn load_config(agent: &Agent) -> DbResult<Config> {
         providers,
         models,
         raw_other: Value::Null,
+        // The SQLite snapshot stores no import baseline; an empty baseline
+        // makes export's stale-key cleanup a no-op (safe degradation).
+        imported_section_keys: Vec::new(),
     })
 }
 
@@ -328,12 +331,5 @@ pub fn delete_setting_pub(key: &str) -> DbResult<()> {
 }
 
 fn provider_type_for_str(s: &str) -> ProviderType {
-    match s {
+    ProviderType::from_kimi_type(s)
-        "anthropic" => ProviderType::Anthropic,
-        "openai" => ProviderType::Openai,
-        "openai_responses" => ProviderType::OpenaiResponses,
-        "google-genai" => ProviderType::GoogleGenai,
-        "vertexai" => ProviderType::Vertexai,
-        _ => ProviderType::Kimi,
-    }
 }

src-tauri/src/kimi_code_io.rs

@@ -148,7 +148,7 @@ pub fn kimi_code_to_config(value: &TomlValue) -> Config {
             let provider_type = table
                 .get("type")
                 .and_then(|v| v.as_str())
-                .map(provider_type_for_kimi_type)
+                .map(ProviderType::from_kimi_type)
                 .unwrap_or(ProviderType::Kimi);
 
             let base_url = table.get("base_url").and_then(|v| v.as_str()).map(|s| s.to_string());
@@ -216,19 +216,23 @@ pub fn kimi_code_to_config(value: &TomlValue) -> Config {
         }
     }
 
-    let raw_other = {
+    let mut rest = root;
-        let mut rest = root;
+    rest.remove("default_model");
-        rest.remove("default_model");
+    rest.remove("providers");
-        rest.remove("providers");
+    rest.remove("models");
-        rest.remove("models");
+    // Baseline of top-level keys seen at import time (table order). Export
-        toml_value_to_json(&TomlValue::Table(rest))
+    // only drops baseline keys that later disappeared from raw_other, i.e.
-    };
+    // sections the user removed in the UI — sections the CLI adds after
+    // import are not in the baseline and survive the round-trip.
+    let imported_section_keys: Vec<String> = rest.keys().cloned().collect();
+    let raw_other = toml_value_to_json(&TomlValue::Table(rest));
 
     Config {
         default_model,
         providers,
         models,
         raw_other,
+        imported_section_keys,
     }
 }
 
@@ -354,10 +358,13 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
     // Sync UI-managed top-level sections (thinking, experimental,
     // secondary_model, ...) from config.raw_other back into the root.
     // At import time every top-level key except default_model/providers/
-    // models was collected into raw_other, so raw_other is the authoritative
+    // models was collected into raw_other, and their keys recorded in
-    // snapshot of those sections. This both persists UI edits to those
+    // `imported_section_keys` (the import-time baseline). Keys present in
-    // sections and drops sections the user explicitly removed (absent from
+    // raw_other are written back (persisting UI edits); keys that were in
-    // raw_other but still present in `existing`).
+    // the baseline but are absent from raw_other were removed by the user
+    // and are dropped from `existing`. Top-level keys NOT in the baseline
+    // were added by the CLI after import and are preserved untouched. An
+    // empty baseline (Config not built via import) deletes nothing.
     let mut managed_keys = std::collections::HashSet::new();
     if let TomlValue::Table(extra) =
         json_to_toml(&config.raw_other).unwrap_or(TomlValue::Table(Table::new()))
@@ -377,6 +384,7 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
                 && *k != "providers"
                 && *k != "models"
                 && !managed_keys.contains(*k)
+                && config.imported_section_keys.iter().any(|b| b == *k)
         })
         .cloned()
         .collect();
@@ -387,17 +395,6 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
     TomlValue::Table(root)
 }
 
-fn provider_type_for_kimi_type(typ: &str) -> ProviderType {
-    match typ {
-        "anthropic" => ProviderType::Anthropic,
-        "openai" => ProviderType::Openai,
-        "openai_responses" => ProviderType::OpenaiResponses,
-        "google-genai" => ProviderType::GoogleGenai,
-        "vertexai" => ProviderType::Vertexai,
-        _ => ProviderType::Kimi,
-    }
-}
-
 fn toml_value_to_json(value: &TomlValue) -> Value {
     match value {
         TomlValue::String(s) => Value::String(s.clone()),
@@ -572,6 +569,7 @@ api_key = ""
             providers,
             models,
             raw_other: Value::Null,
+            imported_section_keys: Vec::new(),
         };
 
         let exported = config_to_kimi_code(&config, None);
@@ -705,6 +703,7 @@ default_effort = "low"
             providers,
             models,
             raw_other: Value::Null,
+            imported_section_keys: Vec::new(),
         };
 
         let exported = config_to_kimi_code(&config, None);
@@ -818,6 +817,7 @@ max_context_size = 1048576
             providers,
             models: IndexMap::new(),
             raw_other: Value::Null,
+            imported_section_keys: Vec::new(),
         };
 
         let exported = config_to_kimi_code(&config, None);
@@ -858,6 +858,7 @@ max_context_size = 1048576
             providers,
             models: IndexMap::new(),
             raw_other: Value::Null,
+            imported_section_keys: Vec::new(),
         };
 
         let exported = config_to_kimi_code(&config, None);
@@ -908,6 +909,7 @@ max_context_size = 1048576
             )]),
             models: IndexMap::new(),
             raw_other: Value::Null,
+            imported_section_keys: Vec::new(),
         };
         let exported = config_to_kimi_code(&config, None);
         let provider = exported
@@ -927,6 +929,7 @@ max_context_size = 1048576
             )]),
             models: IndexMap::new(),
             raw_other: Value::Null,
+            imported_section_keys: Vec::new(),
         };
         let exported = config_to_kimi_code(&config, None);
         let provider = exported
@@ -940,4 +943,125 @@ max_context_size = 1048576
             Some("sk-user-key")
         );
     }
+
+    #[test]
+    fn kimi_code_unknown_provider_type_roundtrip() {
+        // A provider `type` string the CLI knows but Kimi Switch does not
+        // must survive import → export verbatim, not be rewritten to "kimi".
+        let toml_str = r#"
+default_model = "p1/custom-model"
+
+[providers.p1]
+type = "custom-xyz"
+api_key = "sk-x"
+
+[models."p1/custom-model"]
+provider = "p1"
+model = "custom-model"
+max_context_size = 128000
+"#;
+        let value: TomlValue = toml_str.parse().unwrap();
+        let config = kimi_code_to_config(&value);
+
+        let provider = config.providers.get("p1").unwrap();
+        assert_eq!(
+            provider.provider_type,
+            ProviderType::Unknown("custom-xyz".to_string())
+        );
+
+        let exported = config_to_kimi_code(&config, Some(&value));
+        let provider = exported
+            .as_table().unwrap()
+            .get("providers").unwrap()
+            .as_table().unwrap()
+            .get("p1").unwrap()
+            .as_table().unwrap();
+        assert_eq!(
+            provider.get("type").and_then(|v| v.as_str()),
+            Some("custom-xyz"),
+            "unknown provider type must round-trip verbatim"
+        );
+    }
+
+    #[test]
+    fn kimi_code_export_preserves_sections_added_after_import() {
+        // Top-level sections the CLI added AFTER we imported (not in the
+        // import-time baseline) must survive export instead of being wiped
+        // by the stale-key cleanup.
+        let imported_str = r#"
+default_model = "glm-5.2"
+
+[providers."glmzhongzhuan"]
+type = "anthropic"
+api_key = "sk-test"
+
+[models."glm-5.2"]
+provider = "glmzhongzhuan"
+model = "glm-5.2"
+max_context_size = 900000
+
+[thinking]
+enabled = true
+"#;
+        let imported: TomlValue = imported_str.parse().unwrap();
+        let config = kimi_code_to_config(&imported);
+
+        // The on-disk file now contains an extra [swarm] section the CLI
+        // wrote after our import.
+        let existing: TomlValue = format!("{}\n[swarm]\ntimeout_ms = 123\n", imported_str.trim_end())
+            .parse()
+            .unwrap();
+
+        let exported = config_to_kimi_code(&config, Some(&existing));
+        let root = exported.as_table().unwrap();
+        let swarm = root.get("swarm").unwrap().as_table().unwrap();
+        assert_eq!(
+            swarm.get("timeout_ms").and_then(|v| v.as_integer()),
+            Some(123),
+            "CLI-added [swarm] section must be preserved"
+        );
+        // Baseline sections are still synced as before.
+        let thinking = root.get("thinking").unwrap().as_table().unwrap();
+        assert_eq!(thinking.get("enabled").and_then(|v| v.as_bool()), Some(true));
+    }
+
+    #[test]
+    fn kimi_code_export_drops_user_removed_sections() {
+        // A section that WAS in the import baseline but was removed from
+        // raw_other (the user deleted it in the UI) must still be dropped
+        // from the exported file.
+        let toml_str = r#"
+default_model = "glm-5.2"
+
+[providers."glmzhongzhuan"]
+type = "anthropic"
+api_key = "sk-test"
+
+[models."glm-5.2"]
+provider = "glmzhongzhuan"
+model = "glm-5.2"
+max_context_size = 900000
+
+[thinking]
+enabled = true
+"#;
+        let value: TomlValue = toml_str.parse().unwrap();
+        let mut config = kimi_code_to_config(&value);
+        assert!(
+            config.imported_section_keys.contains(&"thinking".to_string()),
+            "baseline must record the imported [thinking] section"
+        );
+
+        // UI removed the thinking section.
+        let mut raw = config.raw_other.as_object().unwrap().clone();
+        raw.remove("thinking");
+        config.raw_other = Value::Object(raw);
+
+        let exported = config_to_kimi_code(&config, Some(&value));
+        let root = exported.as_table().unwrap();
+        assert!(
+            !root.contains_key("thinking"),
+            "user-removed section must be dropped on export"
+        );
+    }
 }

src-tauri/src/models.rs

@@ -1,5 +1,7 @@
+use std::borrow::Cow;
+
 use indexmap::IndexMap;
-use serde::{Deserialize, Serialize};
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use serde_json::Value;
 
 /// Target agent whose provider/model config is being edited.
@@ -19,18 +21,35 @@ impl Agent {
     }
 }
 
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+#[derive(Debug, Clone, PartialEq, Eq)]
-#[serde(rename_all = "snake_case")]
 pub enum ProviderType {
     Anthropic,
     Openai,
-    #[serde(rename = "openai_responses")]
     OpenaiResponses,
-    #[serde(rename = "google-genai")]
     GoogleGenai,
     Vertexai,
     /// Kept for compatibility; mapped to OpenAI-compatible in Pi.
     Kimi,
+    /// A provider type string the CLI knows but Kimi Switch does not.
+    /// Kept verbatim so new upstream `type` values survive the round-trip
+    /// instead of being rewritten to "kimi".
+    Unknown(String),
+}
+
+// Serde is hand-written to keep a pure string wire format: known variants
+// map to their CLI string, `Unknown(s)` maps to `s` itself. A derived
+// representation would expose the internal variant names.
+impl Serialize for ProviderType {
+    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+        serializer.serialize_str(&self.as_str())
+    }
+}
+
+impl<'de> Deserialize<'de> for ProviderType {
+    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+        let s = String::deserialize(deserializer)?;
+        Ok(ProviderType::from_kimi_type(&s))
+    }
 }
 
 const fn default_true() -> bool {
@@ -38,14 +57,29 @@ const fn default_true() -> bool {
 }
 
 impl ProviderType {
-    pub fn as_str(&self) -> &'static str {
+    pub fn as_str(&self) -> Cow<'static, str> {
         match self {
-            ProviderType::Anthropic => "anthropic",
+            ProviderType::Anthropic => Cow::Borrowed("anthropic"),
-            ProviderType::Openai => "openai",
+            ProviderType::Openai => Cow::Borrowed("openai"),
-            ProviderType::OpenaiResponses => "openai_responses",
+            ProviderType::OpenaiResponses => Cow::Borrowed("openai_responses"),
-            ProviderType::GoogleGenai => "google-genai",
+            ProviderType::GoogleGenai => Cow::Borrowed("google-genai"),
-            ProviderType::Vertexai => "vertexai",
+            ProviderType::Vertexai => Cow::Borrowed("vertexai"),
-            ProviderType::Kimi => "kimi",
+            ProviderType::Kimi => Cow::Borrowed("kimi"),
+            ProviderType::Unknown(s) => Cow::Owned(s.clone()),
+        }
+    }
+
+    /// Map a CLI `type` string to a `ProviderType`; unrecognized values
+    /// become `Unknown(s)` so the original string round-trips on export.
+    pub fn from_kimi_type(s: &str) -> ProviderType {
+        match s {
+            "anthropic" => ProviderType::Anthropic,
+            "openai" => ProviderType::Openai,
+            "openai_responses" => ProviderType::OpenaiResponses,
+            "google-genai" => ProviderType::GoogleGenai,
+            "vertexai" => ProviderType::Vertexai,
+            "kimi" => ProviderType::Kimi,
+            other => ProviderType::Unknown(other.to_string()),
         }
     }
 
@@ -55,7 +89,7 @@ impl ProviderType {
                 Some("https://api.openai.com/v1")
             }
             ProviderType::GoogleGenai => Some("https://generativelanguage.googleapis.com"),
-            ProviderType::Anthropic | ProviderType::Vertexai => None,
+            ProviderType::Anthropic | ProviderType::Vertexai | ProviderType::Unknown(_) => None,
         }
     }
 
@@ -203,6 +237,12 @@ pub struct Config {
     pub models: IndexMap<String, Model>,
     #[serde(default, skip_serializing_if = "Value::is_null")]
     pub raw_other: Value,
+    /// Top-level section keys captured at import time. Export uses this
+    /// baseline to distinguish "user removed this section in the UI" from
+    /// "the CLI added this section after we imported" — only baseline keys
+    /// absent from the current raw_other are dropped on export.
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub imported_section_keys: Vec<String>,
 }
 
 impl PartialEq for Config {
@@ -211,6 +251,7 @@ impl PartialEq for Config {
             && self.providers == other.providers
             && self.models == other.models
             && self.raw_other == other.raw_other
+            && self.imported_section_keys == other.imported_section_keys
     }
 }
 

src-tauri/src/pi_io.rs

@@ -205,8 +205,10 @@ pub fn pi_api_for_provider(provider_type: &ProviderType) -> &'static str {
         ProviderType::Anthropic => "anthropic-messages",
         ProviderType::GoogleGenai => "google-generative-ai",
         ProviderType::Vertexai => "google-vertex",
-        // Treat Kimi as OpenAI-compatible since it is not a native Pi API.
+        // Treat Kimi as OpenAI-compatible since it is not a native Pi API;
-        ProviderType::Kimi => "openai-completions",
+        // unknown upstream types get the same lenient handling (Pi is a
+        // legacy path).
+        ProviderType::Kimi | ProviderType::Unknown(_) => "openai-completions",
     }
 }
 
@@ -383,6 +385,7 @@ pub fn pi_file_to_config(file: &PiModelsFile) -> Config {
         providers,
         models,
         raw_other: file.extra.clone(),
+        imported_section_keys: Vec::new(),
     }
 }
 

src/components/ProviderEdit.tsx

@@ -54,6 +54,8 @@ function defaultBaseUrl(agent: Agent, type: ProviderType): string {
       case "anthropic":
       case "vertexai":
         return "";
+      default:
+        return "";
     }
   }
   // Pi defaults
@@ -68,6 +70,8 @@ function defaultBaseUrl(agent: Agent, type: ProviderType): string {
     case "anthropic":
     case "vertexai":
       return "";
+    default:
+      return "";
   }
 }
 
@@ -307,6 +311,11 @@ export function ProviderEdit({
                           {t}
                         </option>
                       ))}
+                      {!PROVIDER_TYPES.includes(provider.provider_type) && (
+                        <option value={provider.provider_type}>
+                          {t("apiFormatUnknown", { type: provider.provider_type })}
+                        </option>
+                      )}
                     </select>
                   </div>
                 </div>

src/i18n/en.ts

@@ -74,6 +74,7 @@ export const enTranslations: Record<TranslationKey, string> = {
   kimiOAuthStart: "Start sign-in",
   apiSettings: "API Settings",
   apiFormat: "API Format",
+  apiFormatUnknown: "Unknown format ({type}, kept verbatim)",
   authField: "Auth Field",
   apiKey: "API Key",
   getApiKeyLink: "Get API Key",

src/i18n/zh.ts

@@ -72,6 +72,7 @@ export const zhTranslations = {
   kimiOAuthStart: "开始登录",
   apiSettings: "API 设置",
   apiFormat: "API 格式",
+  apiFormatUnknown: "未知格式（{type}，原样保留）",
   authField: "认证字段",
   apiKey: "API Key",
   getApiKeyLink: "获取 API Key",

src/types/index.ts

@@ -6,7 +6,9 @@ export type ProviderType =
   | "openai"
   | "openai_responses"
   | "google-genai"
-  | "vertexai";
+  | "vertexai"
+  /** Any other string the CLI writes — preserved verbatim on round-trip. */
+  | (string & {});
 
 export interface Provider {
   name: string;
@@ -62,6 +64,12 @@ export interface Config {
   providers: Record<string, Provider>;
   models: Record<string, Model>;
   raw_other?: unknown;
+  /**
+   * Top-level section keys captured at import time by the Rust side.
+   * Export drops only baseline keys absent from raw_other (sections the
+   * user removed in the UI); CLI-added sections are preserved.
+   */
+  imported_section_keys?: string[];
 }
 
 /**