test(slashcommand): isolate command discovery mocks

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/tools/slashcommand/command-discovery-deps.ts

@@ -0,0 +1,6 @@
+export { EXCLUDED_DIRS } from "../../shared/excluded-dirs"
+export { parseFrontmatter } from "../../shared/frontmatter"
+export { sanitizeModelField } from "../../shared/model-sanitizer"
+export { getOpenCodeCommandDirs } from "../../shared/opencode-command-dirs"
+export { discoverPluginCommandDefinitions } from "../../shared/plugin-command-discovery"
+export { findProjectOpencodeCommandDirs } from "../../shared/project-discovery-dirs"

src/tools/slashcommand/command-discovery.ts

@@ -7,11 +7,12 @@ import {
   getOpenCodeCommandDirs,
   discoverPluginCommandDefinitions,
   EXCLUDED_DIRS,
-} from "../../shared"
+} from "./command-discovery-deps"
 import type { CommandFrontmatter } from "../../features/claude-code-command-loader/types"
 import { isMarkdownFile } from "../../shared/file-utils"
-import { getClaudeConfigDir, log } from "../../shared"
-import { loadBuiltinCommands } from "../../features/builtin-commands"
+import { getClaudeConfigDir } from "../../shared/claude-config-dir"
+import { log } from "../../shared/logger"
+import { loadBuiltinCommands } from "../../features/builtin-commands/commands"
 import type { CommandInfo, CommandMetadata, CommandScope } from "./types"
 
 export interface CommandDiscoveryOptions {