docs: Update all documentation for v2.1.0 release

Updates across all major documentation files to reflect v2.1.0 release
status and recent completions.

Changes:
- CLAUDE.md:
  * Updated version from v2.0.0 to v2.1.0
  * Updated date to November 29, 2025
  * Updated test count from 391 to 427
  * Moved completed PRs (#195, #198) and Issue #203 to "Completed" section
  * Updated "Next Up" priorities

- README.md:
  * Updated version badge from 2.0.0 to 2.1.0
  * Updated test badge from 379 to 427 passing

- CHANGELOG.md:
  * Added Issue #203 (Configurable EXCLUDED_DIRS) to Unreleased section
  * Documented 19 comprehensive tests for exclude_dirs feature
  * Listed both extend and replace modes

- FUTURE_RELEASES.md:
  * Marked v2.1.0 as "Released" (November 29, 2025)
  * Moved "Fix 12 unified tests" to completed
  * Updated release schedule table

- FLEXIBLE_ROADMAP.md:
  * Updated current status from v1.0.0 to v2.1.0
  * Added latest release date
  * Expanded "What Works" section with new features
  * Updated test count to 427

All documentation now accurately reflects:
- v2.1.0 release status ✅
- 427 tests passing (up from 391) ✅  - Issue #203 completion ✅
- PR #195 and #198 merged status ✅

Related: #203

FLEXIBLE_ROADMAP.md

@@ -4,14 +4,21 @@
 
 ---
 
-## 🎯 Current Status: v1.0.0 Released ✅
+## 🎯 Current Status: v2.1.0 Released ✅
+
+**Latest Release:** v2.1.0 (November 29, 2025)
 
 **What Works:**
 - ✅ Documentation scraping (HTML websites)
+- ✅ GitHub repository scraping with unlimited local analysis
+- ✅ PDF extraction and conversion
+- ✅ Unified multi-source scraping (docs + GitHub + PDF)
 - ✅ 9 MCP tools fully functional
 - ✅ Auto-upload to Claude
-- ✅ 12 preset configs
+- ✅ 24 preset configs (including 5 unified configs)
 - ✅ Large docs support (40K+ pages)
+- ✅ Configurable directory exclusions
+- ✅ 427 tests passing
 
 ---