feat: add custom_rest provider mode and rebrand application name

Rename custom API format handling from custom_rest to custom_rest with backward compatibility, add guided model selection with custom entry in provider settings, and rebrand app naming to Troubleshooting and RCA Assistant across UI, metadata, and docs.

Made-with: Cursor

README.md

@@ -1,4 +1,4 @@
-# TFTSR — IT Triage & RCA Desktop Application
+# Troubleshooting and RCA Assistant
 
 A structured, AI-backed desktop tool for IT incident triage, 5-Whys root cause analysis, RCA document generation, and blameless post-mortems. Runs fully offline via Ollama local models, or connects to cloud AI providers.
 
@@ -166,7 +166,7 @@ To use Claude via AWS Bedrock (ideal for enterprise environments with existing A
    nohup litellm --config ~/.litellm/config.yaml --port 8000 > ~/.litellm/litellm.log 2>&1 &
    ```
 
-4. **Configure in TFTSR:**
+4. **Configure in Troubleshooting and RCA Assistant:**
    - Provider: **OpenAI** (OpenAI-compatible)
    - Base URL: `http://localhost:8000/v1`
    - API Key: `sk-your-secure-key` (from config)

docs/wiki/AI-Providers.md

@@ -113,7 +113,7 @@ The domain prompt is injected as the first `system` role message in every new co
 
 ---
 
-## 6. Custom Provider (MSI GenAI & Others)
+## 6. Custom Provider (Custom REST & Others)
 
 **Status:** ✅ **Implemented** (v0.2.6)
 
@@ -137,25 +137,26 @@ Standard OpenAI `/chat/completions` endpoint with Bearer authentication.
 
 ---
 
-### Format: MSI GenAI
+### Format: Custom REST
 
 **Motorola Solutions Internal GenAI Service** — Enterprise AI platform with centralized cost tracking and model access.
 
 | Field | Value |
 |-------|-------|
 | `config.provider_type` | `"custom"` |
-| `config.api_format` | `"msi_genai"` |
+| `config.api_format` | `"custom_rest"` |
 | API URL | `https://genai-service.commandcentral.com/app-gateway` (prod)<br>`https://genai-service.stage.commandcentral.com/app-gateway` (stage) |
 | Auth Header | `x-msi-genai-api-key` |
 | Auth Prefix | `` (empty - no Bearer prefix) |
 | Endpoint Path | `` (empty - URL includes full path `/api/v2/chat`) |
 
-**Available Models:**
+**Available Models (dropdown in Settings):**
 - `VertexGemini` — Gemini 2.0 Flash (Private/GCP)
 - `Claude-Sonnet-4` — Claude Sonnet 4 (Public/Anthropic)
 - `ChatGPT4o` — GPT-4o (Public/OpenAI)
 - `ChatGPT-5_2-Chat` — GPT-4.5 (Public/OpenAI)
-- See [GenAI API User Guide](../GenAI%20API%20User%20Guide.md) for full model list
+- Full list is sourced from [GenAI API User Guide](../GenAI%20API%20User%20Guide.md)
+- Includes a `Custom model...` option to manually enter any model ID
 
 **Request Format:**
 ```json
@@ -187,9 +188,9 @@ Standard OpenAI `/chat/completions` endpoint with Bearer authentication.
 
 **Configuration (Settings → AI Providers → Add Provider):**
 ```
-Name:             MSI GenAI
+Name:             Custom REST (MSI GenAI)
 Type:             Custom
-API Format:       MSI GenAI
+API Format:       Custom REST
 API URL:          https://genai-service.stage.commandcentral.com/app-gateway
 Model:            VertexGemini
 API Key:          (your MSI GenAI API key from portal)
@@ -208,13 +209,13 @@ Auth Prefix:      (leave empty)
 | Error | Cause | Solution |
 |-------|-------|----------|
 | 403 Forbidden | Invalid API key or insufficient permissions | Verify key in MSI GenAI portal, check model access |
-| Missing `userId` field | Configuration not saved | Ensure UI shows User ID field when `api_format=msi_genai` |
+| Missing `userId` field | Configuration not saved | Ensure UI shows User ID field when `api_format=custom_rest` |
 | No conversation history | `sessionId` not persisted | Session ID stored in `ProviderConfig.session_id` — currently per-provider, not per-conversation |
 
 **Implementation Details:**
-- Backend: `src-tauri/src/ai/openai.rs::chat_msi_genai()`
+- Backend: `src-tauri/src/ai/openai.rs::chat_custom_rest()`
 - Schema: `src-tauri/src/state.rs::ProviderConfig` (added `user_id`, `api_format`, custom auth fields)
-- Frontend: `src/pages/Settings/AIProviders.tsx` (conditional UI for MSI GenAI)
+- Frontend: `src/pages/Settings/AIProviders.tsx` (conditional UI for Custom REST + model dropdown)
 - CSP whitelist: `https://genai-service.stage.commandcentral.com` and production domain
 
 ---
@@ -228,9 +229,9 @@ All providers support the following optional configuration fields (v0.2.6+):
 | `custom_endpoint_path` | `Option<String>` | Override endpoint path | `/chat/completions` |
 | `custom_auth_header` | `Option<String>` | Custom auth header name | `Authorization` |
 | `custom_auth_prefix` | `Option<String>` | Prefix before API key | `Bearer ` |
-| `api_format` | `Option<String>` | API format (`openai` or `msi_genai`) | `openai` |
+| `api_format` | `Option<String>` | API format (`openai` or `custom_rest`) | `openai` |
 | `session_id` | `Option<String>` | Session ID for stateful APIs | None |
-| `user_id` | `Option<String>` | User ID for cost tracking (MSI GenAI) | None |
+| `user_id` | `Option<String>` | User ID for cost tracking (Custom REST MSI contract) | None |
 
 **Backward Compatibility:**
 All fields are optional and default to OpenAI-compatible behavior. Existing provider configurations are unaffected.

docs/wiki/Home.md

@@ -1,6 +1,6 @@
-# TFTSR — IT Triage & RCA Desktop Application
+# Troubleshooting and RCA Assistant
 
-**TFTSR** is a secure desktop application for guided IT incident triage, root cause analysis (RCA), and post-mortem documentation. Built with Tauri 2.x (Rust + WebView) and React 18.
+**Troubleshooting and RCA Assistant** is a secure desktop application for guided IT incident triage, root cause analysis (RCA), and post-mortem documentation. Built with Tauri 2.x (Rust + WebView) and React 18.
 
 **CI:** ![build](http://172.0.0.29:3000/sarman/tftsr-devops_investigation/actions/workflows/test.yml/badge.svg) — rustfmt · clippy · 64 Rust tests · tsc · vitest — all green
 
@@ -25,7 +25,7 @@
 - **5-Whys AI Triage** — Interactive guided root cause analysis via multi-turn AI chat
 - **PII Auto-Redaction** — Detects and redacts sensitive data before any AI send
 - **Multi-Provider AI** — OpenAI, Anthropic Claude, Google Gemini, Mistral, AWS Bedrock (via LiteLLM), MSI GenAI (Motorola internal), local Ollama (fully offline)
-- **Custom Provider Support** — Flexible authentication (Bearer, custom headers) and API formats (OpenAI-compatible, MSI GenAI)
+- **Custom Provider Support** — Flexible authentication (Bearer, custom headers) and API formats (OpenAI-compatible, Custom REST)
 - **External Integrations** — Confluence, ServiceNow, Azure DevOps with OAuth2 PKCE flows
 - **SQLCipher AES-256** — All issue history and credentials encrypted at rest
 - **RCA + Post-Mortem Generation** — Auto-populated Markdown templates, exportable as MD/PDF

index.html

@@ -4,7 +4,7 @@
     <meta charset="UTF-8" />
     <link rel="icon" type="image/svg+xml" href="/vite.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>TFTSR — IT Triage & RCA</title>
+    <title>Troubleshooting and RCA Assistant</title>
   </head>
   <body>
     <div id="root"></div>

src-tauri/src/ai/openai.rs

@@ -6,6 +6,10 @@ use crate::state::ProviderConfig;
 
 pub struct OpenAiProvider;
 
+fn is_custom_rest_format(api_format: Option<&str>) -> bool {
+    matches!(api_format, Some("custom_rest") | Some("msi_genai"))
+}
+
 #[async_trait]
 impl Provider for OpenAiProvider {
     fn name(&self) -> &str {
@@ -29,17 +33,39 @@ impl Provider for OpenAiProvider {
         messages: Vec<Message>,
         config: &ProviderConfig,
     ) -> anyhow::Result<ChatResponse> {
-        // Check if using MSI GenAI format
+        // Check if using custom REST format
         let api_format = config.api_format.as_deref().unwrap_or("openai");
 
-        if api_format == "msi_genai" {
+        // Backward compatibility: accept legacy msi_genai identifier
-            self.chat_msi_genai(messages, config).await
+        if is_custom_rest_format(Some(api_format)) {
+            self.chat_custom_rest(messages, config).await
         } else {
             self.chat_openai(messages, config).await
         }
     }
 }
 
+#[cfg(test)]
+mod tests {
+    use super::is_custom_rest_format;
+
+    #[test]
+    fn custom_rest_format_is_recognized() {
+        assert!(is_custom_rest_format(Some("custom_rest")));
+    }
+
+    #[test]
+    fn legacy_msi_format_is_recognized_for_compatibility() {
+        assert!(is_custom_rest_format(Some("msi_genai")));
+    }
+
+    #[test]
+    fn openai_format_is_not_custom_rest() {
+        assert!(!is_custom_rest_format(Some("openai")));
+        assert!(!is_custom_rest_format(None));
+    }
+}
+
 impl OpenAiProvider {
     /// OpenAI-compatible API format (default)
     async fn chat_openai(
@@ -113,8 +139,8 @@ impl OpenAiProvider {
         })
     }
 
-    /// MSI GenAI custom format
+    /// Custom REST format (MSI GenAI payload contract)
-    async fn chat_msi_genai(
+    async fn chat_custom_rest(
         &self,
         messages: Vec<Message>,
         config: &ProviderConfig,
@@ -173,7 +199,7 @@ impl OpenAiProvider {
             body["modelConfig"] = model_config;
         }
 
-        // Use custom auth header and prefix (no prefix for MSI GenAI)
+        // Use custom auth header and prefix (no prefix for this custom REST contract)
         let auth_header = config
             .custom_auth_header
             .as_deref()
@@ -185,7 +211,7 @@ impl OpenAiProvider {
             .post(&url)
             .header(auth_header, auth_value)
             .header("Content-Type", "application/json")
-            .header("X-msi-genai-client", "tftsr-devops-investigation")
+            .header("X-msi-genai-client", "troubleshooting-rca-assistant")
             .json(&body)
             .send()
             .await?;
@@ -193,7 +219,7 @@ impl OpenAiProvider {
         if !resp.status().is_success() {
             let status = resp.status();
             let text = resp.text().await?;
-            anyhow::bail!("MSI GenAI API error {status}: {text}");
+            anyhow::bail!("Custom REST API error {status}: {text}");
         }
 
         let json: serde_json::Value = resp.json().await?;
@@ -212,7 +238,7 @@ impl OpenAiProvider {
         Ok(ChatResponse {
             content,
             model: config.model.clone(),
-            usage: None, // MSI GenAI doesn't provide token usage in response
+            usage: None, // This custom REST contract doesn't provide token usage in response
         })
     }
 }

src-tauri/src/commands/ai.rs

@@ -278,7 +278,9 @@ pub async fn test_provider_connection(
     let provider = create_provider(&provider_config);
     let messages = vec![Message {
         role: "user".into(),
-        content: "Reply with exactly: TFTSR connection test successful.".into(),
+        content:
+            "Reply with exactly: Troubleshooting and RCA Assistant connection test successful."
+                .into(),
     }];
     provider
         .chat(messages, &provider_config)

src-tauri/src/docs/postmortem.rs

@@ -148,7 +148,7 @@ pub fn generate_postmortem_markdown(detail: &IssueDetail) -> String {
 
     md.push_str("---\n\n");
     md.push_str(&format!(
-        "_Generated by TFTSR IT Triage on {}_\n",
+        "_Generated by Troubleshooting and RCA Assistant on {}_\n",
         chrono::Utc::now().format("%Y-%m-%d %H:%M UTC")
     ));
 

src-tauri/src/docs/rca.rs

@@ -133,7 +133,7 @@ pub fn generate_rca_markdown(detail: &IssueDetail) -> String {
 
     md.push_str("---\n\n");
     md.push_str(&format!(
-        "_Generated by TFTSR IT Triage on {}_\n",
+        "_Generated by Troubleshooting and RCA Assistant on {}_\n",
         chrono::Utc::now().format("%Y-%m-%d %H:%M UTC")
     ));
 

src-tauri/src/integrations/webview_auth.rs

@@ -49,7 +49,9 @@ pub async fn authenticate_with_webview(
         &webview_label,
         WebviewUrl::External(login_url.parse().map_err(|e| format!("Invalid URL: {e}"))?),
     )
-    .title(format!("{service} Browser (TFTSR)"))
+    .title(format!(
+        "{service} Browser (Troubleshooting and RCA Assistant)"
+    ))
     .inner_size(1000.0, 800.0)
     .min_inner_size(800.0, 600.0)
     .resizable(true)

src-tauri/src/lib.rs

@@ -21,7 +21,7 @@ pub fn run() {
         )
         .init();
 
-    tracing::info!("Starting TFTSR application");
+    tracing::info!("Starting Troubleshooting and RCA Assistant application");
 
     // Determine data directory
     let data_dir = dirs_data_dir();
@@ -107,7 +107,7 @@ pub fn run() {
             commands::system::get_audit_log,
         ])
         .run(tauri::generate_context!())
-        .expect("Error running TFTSR application");
+        .expect("Error running Troubleshooting and RCA Assistant application");
 }
 
 /// Determine the application data directory.

src-tauri/src/state.rs

@@ -29,14 +29,14 @@ pub struct ProviderConfig {
     /// If None, defaults to "Bearer "
     #[serde(skip_serializing_if = "Option::is_none")]
     pub custom_auth_prefix: Option<String>,
-    /// Optional: API format ("openai" or "msi_genai")
+    /// Optional: API format ("openai" or "custom_rest")
     /// If None, defaults to "openai"
     #[serde(skip_serializing_if = "Option::is_none")]
     pub api_format: Option<String>,
-    /// Optional: Session ID for stateful APIs like MSI GenAI
+    /// Optional: Session ID for stateful custom REST APIs
     #[serde(skip_serializing_if = "Option::is_none")]
     pub session_id: Option<String>,
-    /// Optional: User ID for MSI GenAI (CORE ID email)
+    /// Optional: User ID for custom REST API cost tracking (CORE ID email)
     #[serde(skip_serializing_if = "Option::is_none")]
     pub user_id: Option<String>,
 }

src-tauri/tauri.conf.json

@@ -1,5 +1,5 @@
 {
-  "productName": "TFTSR",
+  "productName": "Troubleshooting and RCA Assistant",
   "version": "0.2.10",
   "identifier": "com.tftsr.devops",
   "build": {
@@ -14,7 +14,7 @@
     },
     "windows": [
       {
-        "title": "TFTSR \u2014 IT Triage & RCA",
+        "title": "Troubleshooting and RCA Assistant",
         "width": 1280,
         "height": 800,
         "resizable": true,
@@ -36,9 +36,9 @@
     ],
     "resources": [],
     "externalBin": [],
-    "copyright": "TFTSR Contributors",
+    "copyright": "Troubleshooting and RCA Assistant Contributors",
     "category": "Utility",
-    "shortDescription": "IT Incident Triage & RCA Tool",
+    "shortDescription": "Troubleshooting and RCA Assistant",
-    "longDescription": "Structured AI-backed tool for IT incident triage, 5-whys root cause analysis, and post-mortem documentation with offline Ollama support."
+    "longDescription": "Structured AI-backed assistant for IT troubleshooting, 5-whys root cause analysis, and post-mortem documentation with offline Ollama support."
   }
 }

src/App.tsx

@@ -59,7 +59,7 @@ export default function App() {
           <div className="flex items-center justify-between px-4 py-4 border-b">
             {!collapsed && (
               <span className="text-lg font-bold text-foreground tracking-tight">
-                TFTSR
+                Troubleshooting and RCA Assistant
               </span>
             )}
             <button

src/pages/Dashboard/index.tsx

@@ -35,7 +35,7 @@ export default function Dashboard() {
         <div>
           <h1 className="text-3xl font-bold">Dashboard</h1>
           <p className="text-muted-foreground mt-1">
-            IT Triage & Root Cause Analysis
+            Troubleshooting and Root Cause Analysis Assistant
           </p>
         </div>
         <div className="flex items-center gap-2">

src/pages/Settings/AIProviders.tsx

@@ -19,6 +19,35 @@ import {
 import { useSettingsStore } from "@/stores/settingsStore";
 import { testProviderConnectionCmd, type ProviderConfig } from "@/lib/tauriCommands";
 
+export const CUSTOM_REST_MODELS = [
+  "ChatGPT4o",
+  "ChatGPT4o-mini",
+  "ChatGPT-o3-mini",
+  "Gemini-2_0-Flash-001",
+  "Gemini-2_5-Flash",
+  "Claude-Sonnet-3_7",
+  "Openai-gpt-4_1-mini",
+  "Openai-o4-mini",
+  "Claude-Sonnet-4",
+  "ChatGPT-o3-pro",
+  "OpenAI-ChatGPT-4_1",
+  "OpenAI-GPT-4_1-Nano",
+  "ChatGPT-5",
+  "VertexGemini",
+  "ChatGPT-5_1",
+  "ChatGPT-5_1-chat",
+  "ChatGPT-5_2-Chat",
+  "Gemini-3_Pro-Preview",
+  "Gemini-3_1-flash-lite-preview",
+] as const;
+
+export const CUSTOM_MODEL_OPTION = "__custom_model__";
+export const LEGACY_API_FORMAT = "msi_genai";
+export const CUSTOM_REST_FORMAT = "custom_rest";
+
+export const normalizeApiFormat = (format?: string): string | undefined =>
+  format === LEGACY_API_FORMAT ? CUSTOM_REST_FORMAT : format;
+
 const emptyProvider: ProviderConfig = {
   name: "",
   provider_type: "openai",
@@ -50,19 +79,39 @@ export default function AIProviders() {
   const [form, setForm] = useState<ProviderConfig>({ ...emptyProvider });
   const [testResult, setTestResult] = useState<{ success: boolean; message: string } | null>(null);
   const [isTesting, setIsTesting] = useState(false);
+  const [isCustomModel, setIsCustomModel] = useState(false);
+  const [customModelInput, setCustomModelInput] = useState("");
 
   const startAdd = () => {
     setForm({ ...emptyProvider });
     setEditIndex(null);
     setIsAdding(true);
     setTestResult(null);
+    setIsCustomModel(false);
+    setCustomModelInput("");
   };
 
   const startEdit = (index: number) => {
-    setForm({ ...ai_providers[index] });
+    const provider = ai_providers[index];
+    const apiFormat = normalizeApiFormat(provider.api_format);
+    const nextForm = { ...provider, api_format: apiFormat };
+
+    setForm(nextForm);
     setEditIndex(index);
     setIsAdding(true);
     setTestResult(null);
+
+    const isCustomRestProvider =
+      nextForm.provider_type === "custom" && apiFormat === CUSTOM_REST_FORMAT;
+    const knownModel = CUSTOM_REST_MODELS.includes(nextForm.model as (typeof CUSTOM_REST_MODELS)[number]);
+
+    if (isCustomRestProvider && !knownModel) {
+      setIsCustomModel(true);
+      setCustomModelInput(nextForm.model);
+    } else {
+      setIsCustomModel(false);
+      setCustomModelInput("");
+    }
   };
 
   const handleSave = () => {
@@ -244,11 +293,21 @@ export default function AIProviders() {
               </div>
               <div className="space-y-2">
                 <Label>Model</Label>
-                <Input
+                {form.provider_type === "custom"
-                  value={form.model}
+                && normalizeApiFormat(form.api_format) === CUSTOM_REST_FORMAT ? (
-                  onChange={(e) => setForm({ ...form, model: e.target.value })}
+                  <Input
-                  placeholder="gpt-4o"
+                    value={form.model}
-                />
+                    onChange={(e) => setForm({ ...form, model: e.target.value })}
+                    placeholder="Select API Format below to choose model"
+                    disabled
+                  />
+                ) : (
+                  <Input
+                    value={form.model}
+                    onChange={(e) => setForm({ ...form, model: e.target.value })}
+                    placeholder="gpt-4o"
+                  />
+                )}
               </div>
             </div>
             <div className="grid grid-cols-2 gap-4">
@@ -285,7 +344,7 @@ export default function AIProviders() {
                       onValueChange={(v) => {
                         const format = v;
                         const defaults =
-                          format === "msi_genai"
+                          format === CUSTOM_REST_FORMAT
                             ? {
                                 custom_endpoint_path: "",
                                 custom_auth_header: "x-msi-genai-api-key",
@@ -297,6 +356,10 @@ export default function AIProviders() {
                                 custom_auth_prefix: "Bearer ",
                               };
                         setForm({ ...form, api_format: format, ...defaults });
+                        if (format !== CUSTOM_REST_FORMAT) {
+                          setIsCustomModel(false);
+                          setCustomModelInput("");
+                        }
                       }}
                     >
                       <SelectTrigger>
@@ -304,11 +367,11 @@ export default function AIProviders() {
                       </SelectTrigger>
                       <SelectContent>
                         <SelectItem value="openai">OpenAI Compatible</SelectItem>
-                        <SelectItem value="msi_genai">MSI GenAI</SelectItem>
+                        <SelectItem value={CUSTOM_REST_FORMAT}>Custom REST</SelectItem>
                       </SelectContent>
                     </Select>
                     <p className="text-xs text-muted-foreground">
-                      Select the API format. MSI GenAI uses a different request/response structure.
+                      Select the API format. Custom REST uses a non-OpenAI request/response structure.
                     </p>
                   </div>
 
@@ -349,12 +412,12 @@ export default function AIProviders() {
                       placeholder="Bearer "
                     />
                     <p className="text-xs text-muted-foreground">
-                      Prefix added before API key (e.g., "Bearer " for OpenAI, empty for MSI GenAI)
+                      Prefix added before API key (e.g., "Bearer " for OpenAI, empty for Custom REST)
                     </p>
                   </div>
 
-                  {/* MSI GenAI specific: User ID field */}
+                  {/* Custom REST specific: User ID field */}
-                  {form.api_format === "msi_genai" && (
+                  {normalizeApiFormat(form.api_format) === CUSTOM_REST_FORMAT && (
                     <div className="space-y-2">
                       <Label>User ID (CORE ID)</Label>
                       <Input
@@ -367,6 +430,52 @@ export default function AIProviders() {
                       </p>
                     </div>
                   )}
+
+                  {/* Custom REST specific: model dropdown with custom option */}
+                  {normalizeApiFormat(form.api_format) === CUSTOM_REST_FORMAT && (
+                    <div className="space-y-2">
+                      <Label>Model</Label>
+                      <Select
+                        value={isCustomModel ? CUSTOM_MODEL_OPTION : form.model}
+                        onValueChange={(value) => {
+                          if (value === CUSTOM_MODEL_OPTION) {
+                            setIsCustomModel(true);
+                            if (CUSTOM_REST_MODELS.includes(form.model as (typeof CUSTOM_REST_MODELS)[number])) {
+                              setForm({ ...form, model: "" });
+                              setCustomModelInput("");
+                            }
+                          } else {
+                            setIsCustomModel(false);
+                            setCustomModelInput("");
+                            setForm({ ...form, model: value });
+                          }
+                        }}
+                      >
+                        <SelectTrigger>
+                          <SelectValue placeholder="Select a model..." />
+                        </SelectTrigger>
+                        <SelectContent>
+                          {CUSTOM_REST_MODELS.map((model) => (
+                            <SelectItem key={model} value={model}>
+                              {model}
+                            </SelectItem>
+                          ))}
+                          <SelectItem value={CUSTOM_MODEL_OPTION}>Custom model...</SelectItem>
+                        </SelectContent>
+                      </Select>
+                      {isCustomModel && (
+                        <Input
+                          value={customModelInput}
+                          onChange={(e) => {
+                            const value = e.target.value;
+                            setCustomModelInput(value);
+                            setForm({ ...form, model: value });
+                          }}
+                          placeholder="Enter custom model ID"
+                        />
+                      )}
+                    </div>
+                  )}
                 </div>
               </>
             )}

src/pages/Settings/Integrations.tsx

@@ -453,7 +453,7 @@ export default function Integrations() {
       <div>
         <h1 className="text-3xl font-bold">Integrations</h1>
         <p className="text-muted-foreground mt-1">
-          Connect TFTSR with your existing tools and platforms. Choose the authentication method that works best for your environment.
+          Connect Troubleshooting and RCA Assistant with your existing tools and platforms. Choose the authentication method that works best for your environment.
         </p>
       </div>
 

tests/unit/aiProvidersCustomRest.test.ts

@@ -0,0 +1,25 @@
+import { describe, it, expect } from "vitest";
+import {
+  CUSTOM_MODEL_OPTION,
+  CUSTOM_REST_FORMAT,
+  CUSTOM_REST_MODELS,
+  LEGACY_API_FORMAT,
+  normalizeApiFormat,
+} from "@/pages/Settings/AIProviders";
+
+describe("AIProviders Custom REST helpers", () => {
+  it("maps legacy msi_genai api_format to custom_rest", () => {
+    expect(normalizeApiFormat(LEGACY_API_FORMAT)).toBe(CUSTOM_REST_FORMAT);
+  });
+
+  it("keeps openai api_format unchanged", () => {
+    expect(normalizeApiFormat("openai")).toBe("openai");
+  });
+
+  it("contains the guide model list and custom model option sentinel", () => {
+    expect(CUSTOM_REST_MODELS).toContain("ChatGPT4o");
+    expect(CUSTOM_REST_MODELS).toContain("VertexGemini");
+    expect(CUSTOM_REST_MODELS).toContain("Gemini-3_Pro-Preview");
+    expect(CUSTOM_MODEL_OPTION).toBe("__custom_model__");
+  });
+});

tsconfig.json

@@ -17,7 +17,7 @@
     "noFallthroughCasesInSwitch": true,
     "baseUrl": ".",
     "paths": { "@/*": ["src/*"] },
-    "types": ["vitest/globals"]
+    "types": ["vitest/globals", "@testing-library/jest-dom"]
   },
   "include": ["src", "tests/unit"],
   "references": [{ "path": "./tsconfig.node.json" }]