Find .opencode files in workspace search (#2049)

* fix(search): find .opencode workspace files

Workspace autocomplete skips hidden directories unless they are explicitly allowlisted. The missing .opencode entry made provider commands and workflows invisible to file search.

* refactor(search): centralize hidden directory policy

packages/server/src/utils/directory-suggestions.test.ts

@@ -11,12 +11,13 @@ import { tmpdir } from "node:os";
 import path from "node:path";
 import { afterEach, beforeEach, describe, expect, it } from "vitest";
 import { isPlatform } from "../test-utils/platform.js";
-import { searchDirectoryEntries } from "./directory-suggestions.js";
+import {
+  searchDirectoryEntries,
+  WORKSPACE_SEARCH_HIDDEN_DIRECTORIES,
+} from "./directory-suggestions.js";
 
 const isWindows = isPlatform("win32");
 const filesystemRootDirectoryName = isWindows ? "Windows" : "usr";
-const workspaceHiddenDirectories = [".agents", ".claude", ".codex", ".github", ".paseo", ".vscode"];
-
 async function searchAbsoluteDirectoryPaths(options: {
   homeDir: string;
   query: string;
@@ -60,7 +61,7 @@ async function searchRelativeDirectoryEntries(options: {
     matchMode: options.matchMode,
     pathQueryPolicy: "slashes",
     blankQueryBehavior: "children",
-    traversableHiddenDirectoryNames: workspaceHiddenDirectories,
+    traversableHiddenDirectoryNames: WORKSPACE_SEARCH_HIDDEN_DIRECTORIES,
     limit: options.limit,
     maxDepth: options.maxDepth,
     maxEntriesScanned: options.maxEntriesScanned,

packages/server/src/utils/directory-suggestions.ts

@@ -24,7 +24,7 @@ export interface SearchDirectoryEntriesOptions {
   pathQueryPolicy?: PathQueryPolicy;
   rootAliases?: string[];
   blankQueryBehavior?: BlankQueryBehavior;
-  traversableHiddenDirectoryNames?: string[];
+  traversableHiddenDirectoryNames?: readonly string[];
   limit?: number;
   maxDepth?: number;
   maxEntriesScanned?: number;
@@ -84,6 +84,15 @@ const NO_SEGMENT_INDEX = Number.MAX_SAFE_INTEGER;
 const NO_MATCH_OFFSET = Number.MAX_SAFE_INTEGER;
 const NO_FUZZY_SCORE = Number.MAX_SAFE_INTEGER;
 const NO_MATCH_TIER = 5;
+export const WORKSPACE_SEARCH_HIDDEN_DIRECTORIES = [
+  ".agents",
+  ".claude",
+  ".codex",
+  ".github",
+  ".opencode",
+  ".paseo",
+  ".vscode",
+] as const;
 const IGNORED_DIRECTORY_NAMES = new Set([
   "node_modules",
   "venv",