feat: Add export/import and Desk CRM sync tools (164 total)

New modules:
- export-import.ts (2 tools): export_collection_to_markdown, import_markdown_folder
- desk-sync.ts (2 tools): create_desk_project_doc, link_desk_task

Updated:
- CHANGELOG.md: Version 1.2.1
- CLAUDE.md: Updated to 164 tools across 33 modules
- CONTINUE.md: Updated state documentation
- AUDIT-REQUEST.md: Updated metrics and file list

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -2,6 +2,17 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.2.1] - 2026-01-31
+
+### Added
+
+- **Export/Import (2 tools):** export_collection_to_markdown, import_markdown_folder - Advanced Markdown export/import with hierarchy
+- **Desk Sync (2 tools):** create_desk_project_doc, link_desk_task - Desk CRM integration for project documentation
+
+### Changed
+
+- Total tools increased from 160 to 164
+
 ## [1.2.0] - 2026-01-31
 
 ### Added