feat(quick-260327-x64): add skill sync types and resolution utilities to adapter-utils

- Add AdapterSkillSyncMode, AdapterSkillState, AdapterSkillOrigin, AdapterSkillEntry, AdapterSkillSnapshot, AdapterSkillContext types to types.ts
- Add optional listSkills/syncSkills methods to ServerAdapterModule interface
- Export new skill types from index.ts
- Add skill resolution helpers to server-utils.ts: resolveAgentCompanySkillsDir, listAgentCompanySkillEntries, readInstalledSkillTargets, buildPersistentSkillSnapshot, readAgentCompanyRuntimeSkillEntries, readAgentCompanySkillSyncPreference, resolveAgentCompanyDesiredSkillNames, writeAgentCompanySkillSyncPreference, ensureAgentCompanySkillSymlink, removeMaintainerOnlySkillSymlinks

packages/adapter-utils/src/index.ts

@@ -12,6 +12,12 @@ export type {
   AdapterEnvironmentTestStatus,
   AdapterEnvironmentTestResult,
   AdapterEnvironmentTestContext,
+  AdapterSkillSyncMode,
+  AdapterSkillState,
+  AdapterSkillOrigin,
+  AdapterSkillEntry,
+  AdapterSkillSnapshot,
+  AdapterSkillContext,
   AdapterSessionCodec,
   AdapterModel,
   HireApprovedPayload,