refactor(search): fold zai-search into the glm provider

The separate zai-search entry showed "No connections" on the web search
page because credentials live on the `glm` connection, not on it. Every
other provider that does both chat and search (antigravity, kimi, xai,
gemini) declares webSearch on the provider itself, so do the same here.

- glm gains serviceKinds ["llm", "webSearch"] and the MCP searchConfig
- the request builder / normalizer move from "zai-search" to "glm"
- drop the zai-search registry entry and its svg logo, which also
  removes the only need for svg logo support in getProviderIconSrc

ollama-search keeps its own entry and credentialFallback: its search
endpoint is unrelated to the ollama chat transport.

open-sse/providers/registry/glm.js

@@ -53,6 +53,20 @@ export default {
     { id: "glm-4.7", name: "GLM 4.7" },
     { id: "glm-4.6v", name: "GLM 4.6V (Vision)" },
   ],
+  serviceKinds: ["llm", "webSearch"],
+  // Coding plan bundles web search on the same API key as chat.
+  searchConfig: {
+    baseUrl: "https://api.z.ai/api/mcp/web_search_prime/mcp",
+    method: "POST",
+    authType: "apikey",
+    authHeader: "bearer",
+    costPerQuery: 0,
+    searchTypes: ["web"],
+    defaultMaxResults: 5,
+    maxMaxResults: 50,
+    timeoutMs: 10000,
+    cacheTTLMs: 300000,
+  },
   features: {
     usage: true,
     usageApikey: true,

open-sse/providers/registry/index.js

@@ -98,7 +98,6 @@ import p95 from "./xai.js";
 import p96 from "./xiaomi-mimo.js";
 import p97 from "./xiaomi-tokenplan.js";
 import p98 from "./youcom.js";
-import p124 from "./zai-search.js";
 import p99 from "./alims-intl.js";
 import p100 from "./codebuddy-intl.js";
 // Temporarily hidden — no tool calling support (trae SOLO agent / windsurf gRPC skip ToolCallChunk).
@@ -225,7 +224,6 @@ export default [
   p96,
   p97,
   p98,
-  p124,
   p99,
   p100,
   // p102, // trae — hidden, no tool calling

open-sse/providers/registry/zai-search.js

@@ -1,34 +0,0 @@
-export default {
-  id: "zai-search",
-  alias: "zai-search",
-  display: {
-    name: "GLM Coding Search",
-    icon: "travel_explore",
-    color: "#2563EB",
-    textIcon: "GS",
-    website: "https://z.ai",
-    notice: {
-      text: "Web search via the Z.AI Coding plan MCP endpoint. Reuses the API key from the GLM Coding provider.",
-      apiKeyUrl: "https://open.bigmodel.cn/usercenter/apikeys",
-    },
-  },
-  category: "apikey",
-  authType: "apikey",
-  authModes: ["apikey"],
-  serviceKinds: ["webSearch"],
-  // Credential fallback: reuses the GLM Coding plan API key — one key, chat + search.
-  credentialFallback: "glm",
-  searchConfig: {
-    baseUrl: "https://api.z.ai/api/mcp/web_search_prime/mcp",
-    method: "POST",
-    authType: "apikey",
-    authHeader: "bearer",
-    costPerQuery: 0,
-    freeMonthlyQuota: 0,
-    searchTypes: ["web"],
-    defaultMaxResults: 5,
-    maxMaxResults: 50,
-    timeoutMs: 10000,
-    cacheTTLMs: 300000,
-  },
-};