fix(httpapi): return mcp server not found errors (#28817)

packages/opencode/src/server/routes/instance/httpapi/groups/mcp.ts

@@ -2,6 +2,7 @@ import { MCP } from "@/mcp"
 import { ConfigMCP } from "@/config/mcp"
 import { Schema } from "effect"
 import { HttpApi, HttpApiEndpoint, HttpApiError, HttpApiGroup, OpenApi } from "effect/unstable/httpapi"
+import { McpServerNotFoundError } from "../errors"
 import { Authorization } from "../middleware/authorization"
 import { InstanceContextMiddleware } from "../middleware/instance-context"
 import { WorkspaceRoutingMiddleware, WorkspaceRoutingQuery } from "../middleware/workspace-routing"
@@ -67,7 +68,7 @@ export const McpApi = HttpApi.make("mcp")
           params: { name: Schema.String },
           query: WorkspaceRoutingQuery,
           success: described(AuthStartResponse, "OAuth flow started"),
-          error: [UnsupportedOAuthError, HttpApiError.NotFound],
+          error: [UnsupportedOAuthError, McpServerNotFoundError],
         }).annotateMerge(
           OpenApi.annotations({
             identifier: "mcp.auth.start",
@@ -80,7 +81,7 @@ export const McpApi = HttpApi.make("mcp")
           query: WorkspaceRoutingQuery,
           payload: AuthCallbackPayload,
           success: described(MCP.Status, "OAuth authentication completed"),
-          error: [HttpApiError.BadRequest, HttpApiError.NotFound],
+          error: [HttpApiError.BadRequest, McpServerNotFoundError],
         }).annotateMerge(
           OpenApi.annotations({
             identifier: "mcp.auth.callback",
@@ -93,7 +94,7 @@ export const McpApi = HttpApi.make("mcp")
           params: { name: Schema.String },
           query: WorkspaceRoutingQuery,
           success: described(MCP.Status, "OAuth authentication completed"),
-          error: [UnsupportedOAuthError, HttpApiError.NotFound],
+          error: [UnsupportedOAuthError, McpServerNotFoundError],
         }).annotateMerge(
           OpenApi.annotations({
             identifier: "mcp.auth.authenticate",
@@ -105,7 +106,7 @@ export const McpApi = HttpApi.make("mcp")
           params: { name: Schema.String },
           query: WorkspaceRoutingQuery,
           success: described(AuthRemoveResponse, "OAuth credentials removed"),
-          error: HttpApiError.NotFound,
+          error: McpServerNotFoundError,
         }).annotateMerge(
           OpenApi.annotations({
             identifier: "mcp.auth.remove",
@@ -117,6 +118,7 @@ export const McpApi = HttpApi.make("mcp")
           params: { name: Schema.String },
           query: WorkspaceRoutingQuery,
           success: described(Schema.Boolean, "MCP server connected successfully"),
+          error: McpServerNotFoundError,
         }).annotateMerge(
           OpenApi.annotations({
             identifier: "mcp.connect",
@@ -127,6 +129,7 @@ export const McpApi = HttpApi.make("mcp")
           params: { name: Schema.String },
           query: WorkspaceRoutingQuery,
           success: described(Schema.Boolean, "MCP server disconnected successfully"),
+          error: McpServerNotFoundError,
         }).annotateMerge(
           OpenApi.annotations({
             identifier: "mcp.disconnect",